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Idt Corp – ‘10-K’ for 7/31/17 – ‘EX-101.LAB’

On:  Monday, 10/16/17, at 4:56pm ET   ·   For:  7/31/17   ·   Accession #:  1213900-17-10610   ·   File #:  1-16371

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

10/16/17  Idt Corp                          10-K        7/31/17  131:9.7M                                   Edgar Agents LLC/FA

Annual Report   —   Form 10-K   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML    963K 
 2: EX-10.10    Stock Option Agreement Between the Registrant and   HTML     51K 
                Howard Jonas, Dated May 2, 2017                                  
 3: EX-10.11    Assignment Agreement Between the Registrant and     HTML     36K 
                Howard Jonas, Dated September 19, 2017                           
 4: EX-21.01    Subsidiaries of the Registrant                      HTML     36K 
 5: EX-23.01    Consent of Bdo Usa, LLP                             HTML     35K 
 6: EX-23.02    Consent of Grant Thornton LLP                       HTML     34K 
 7: EX-31.01    Certification -- §302 - SOA'02                      HTML     37K 
 8: EX-31.02    Certification -- §302 - SOA'02                      HTML     38K 
 9: EX-32.01    Certification -- §906 - SOA'02                      HTML     33K 
10: EX-32.02    Certification -- §906 - SOA'02                      HTML     33K 
17: R1          Document and Entity Information                     HTML     63K 
18: R2          Consolidated Balance Sheets                         HTML    142K 
19: R3          Consolidated Balance Sheets (Parenthetical)         HTML     56K 
20: R4          Consolidated Statements of Income                   HTML    100K 
21: R5          Consolidated Statements of Comprehensive Income     HTML     56K 
22: R6          Consolidated Statements of Equity                   HTML    113K 
23: R7          Consolidated Statements of Equity (Parenthetical)   HTML     34K 
24: R8          Consolidated Statements of Cash Flows               HTML    158K 
25: R9          Consolidated Statements of Cash Flows               HTML     35K 
                (Parenthetical)                                                  
26: R10         Description of Business and Summary of Significant  HTML    159K 
                Accounting Policies                                              
27: R11         Investment in Rafael Pharmaceuticals, Inc.          HTML     53K 
28: R12         IDT Financial Services Holding Limited Assets and   HTML     63K 
                Liabilities Held for Sale                                        
29: R13         Zedge Spin-Off                                      HTML     46K 
30: R14         Sale of Interest in Fabrix Systems Ltd.             HTML     46K 
31: R15         Marketable Securities                               HTML     75K 
32: R16         Fair Value Measurements                             HTML     81K 
33: R17         Derivative Instruments                              HTML     43K 
34: R18         Property, Plant and Equipment                       HTML     42K 
35: R19         Goodwill                                            HTML     43K 
36: R20         Sale of Member Interest in Visa Europe Ltd.         HTML     36K 
37: R21         Other Operating Losses, Net                         HTML     51K 
38: R22         Revolving Credit Loan Payable                       HTML     37K 
39: R23         Accrued Expenses                                    HTML     41K 
40: R24         Severance Expense                                   HTML     36K 
41: R25         Other Income (Expense), Net                         HTML     41K 
42: R26         Income Taxes                                        HTML     95K 
43: R27         Equity                                              HTML     50K 
44: R28         Stock-Based Compensation                            HTML     74K 
45: R29         Accumulated Other Comprehensive Income (Loss)       HTML     54K 
46: R30         Commitments and Contingencies                       HTML     71K 
47: R31         Related Party Transactions                          HTML     77K 
48: R32         Defined Contribution Plans                          HTML     37K 
49: R33         Business Segment Information                        HTML     97K 
50: R34         Selected Quarterly Financial Data (Unaudited)       HTML     67K 
51: R35         Description of Business and Summary of Significant  HTML    227K 
                Accounting Policies (Policies)                                   
52: R36         Description of Business and Summary of Significant  HTML     61K 
                Accounting Policies (Tables)                                     
53: R37         Investment in Rafael Pharmaceuticals, Inc.          HTML     38K 
                (Tables)                                                         
54: R38         IDT Financial Services Holding Limited Assets and   HTML     53K 
                Liabilities Held for Sale (Tables)                               
55: R39         Zedge Spin-Off (Tables)                             HTML     39K 
56: R40         Sale of Interest in Fabrix Systems Ltd. (Tables)    HTML     42K 
57: R41         Marketable Securities (Tables)                      HTML     74K 
58: R42         Fair Value Measurements (Tables)                    HTML     70K 
59: R43         Derivative Instruments (Tables)                     HTML     42K 
60: R44         Property, Plant and Equipment (Tables)              HTML     40K 
61: R45         Goodwill (Tables)                                   HTML     42K 
62: R46         Other Operating Losses, Net (Tables)                HTML     39K 
63: R47         Accrued Expenses (Tables)                           HTML     39K 
64: R48         Other Income (Expense), Net (Tables)                HTML     39K 
65: R49         Income Taxes (Tables)                               HTML     87K 
66: R50         Stock-Based Compensation (Tables)                   HTML     62K 
67: R51         Accumulated Other Comprehensive Income (Loss)       HTML     53K 
                (Tables)                                                         
68: R52         Commitments and Contingencies (Tables)              HTML     49K 
69: R53         Related Party Transactions (Tables)                 HTML     37K 
70: R54         Business Segment Information (Tables)               HTML     90K 
71: R55         Selected Quarterly Financial Data (Unaudited)       HTML     64K 
                (Tables)                                                         
72: R56         Description of Business and Summary of Significant  HTML     45K 
                Accounting Policies (Details)                                    
73: R57         Description of Business and Summary of Significant  HTML     34K 
                Accounting Policies (Details 1)                                  
74: R58         Description of Business and Summary of Significant  HTML     42K 
                Accounting Policies (Details 2)                                  
75: R59         Description of Business and Summary of Significant  HTML    131K 
                Accounting Policies (Details Textual)                            
76: R60         Investment in Rafael Pharmaceuticals, Inc.          HTML     40K 
                (Details)                                                        
77: R61         Investment in Rafael Pharmaceuticals, Inc.          HTML    125K 
                (Details Textual)                                                
78: R62         IDT Financial Services Holding Limited Assets and   HTML     56K 
                Liabilities Held for Sale (Details)                              
79: R63         IDT Financial Services Holding Limited Assets and   HTML     36K 
                Liabilities Held for Sale (Details 1)                            
80: R64         IDT Financial Services Holding Limited Assets and   HTML     45K 
                Liabilities Held for Sale (Details Textual)                      
81: R65         Zedge Spin-Off (Details)                            HTML     40K 
82: R66         Sale of Interest in Fabrix Systems Ltd. (Details)   HTML     40K 
83: R67         Sale of Interest in Fabrix Systems Ltd. (Details    HTML     51K 
                Textual)                                                         
84: R68         Marketable Securities (Details)                     HTML     78K 
85: R69         Marketable Securities (Details 1)                   HTML     47K 
86: R70         Marketable Securities (Details 2)                   HTML     52K 
87: R71         Marketable Securities (Details Textual)             HTML     47K 
88: R72         Fair Value Measurements (Details)                   HTML     48K 
89: R73         Fair Value Measurements (Details 1)                 HTML     42K 
90: R74         Fair Value Measurements (Details Textual)           HTML     35K 
91: R75         Derivative Instruments (Details)                    HTML     35K 
92: R76         Property, Plant and Equipment (Details)             HTML     51K 
93: R77         Property, Plant and Equipment (Details Textual)     HTML     34K 
94: R78         Goodwill (Details)                                  HTML     45K 
95: R79         Sale of Member Interest in Visa Europe Ltd.         HTML     57K 
                (Details)                                                        
96: R80         Other Operating Losses, Net (Details)               HTML     39K 
97: R81         Other Operating Losses, Net (Details Textual)       HTML     49K 
98: R82         Revolving Credit Loan Payable (Details)             HTML     59K 
99: R83         Accrued Expenses (Details)                          HTML     49K 
100: R84         Severance Expense (Details)                         HTML     47K  
101: R85         Other Income (Expense), Net (Details)               HTML     47K  
102: R86         Income Taxes (Details)                              HTML     40K  
103: R87         Income Taxes (Details 1)                            HTML     69K  
104: R88         Income Taxes (Details 2)                            HTML     61K  
105: R89         Income Taxes (Details 3)                            HTML     56K  
106: R90         Income Taxes (Details 4)                            HTML     42K  
107: R91         Income Taxes (Details Textual)                      HTML     82K  
108: R92         Equity (Details)                                    HTML    119K  
109: R93         Stock-Based Compensation (Details)                  HTML     44K  
110: R94         Stock-Based Compensation (Details 1)                HTML     67K  
111: R95         Stock-Based Compensation (Details 2)                HTML     53K  
112: R96         Stock-Based Compensation (Details Textual)          HTML     85K  
113: R97         Accumulated Other Comprehensive Income (Loss)       HTML     68K  
                (Details)                                                        
114: R98         Accumulated Other Comprehensive Income (Loss)       HTML     44K  
                (Details Textual)                                                
115: R99         Commitments and Contingencies (Details)             HTML     50K  
116: R100        Commitments and Contingencies (Details 1)           HTML     46K  
117: R101        Commitments and Contingencies (Details 2)           HTML     39K  
118: R102        Commitments and Contingencies (Details Textual)     HTML     47K  
119: R103        Related Party Transactions (Details)                HTML     40K  
120: R104        Related Party Transactions (Details Textual)        HTML     87K  
121: R105        Defined Contribution Plans (Details)                HTML     45K  
122: R106        Business Segment Information (Details)              HTML    111K  
123: R107        Business Segment Information (Details 1)            HTML     67K  
124: R108        Business Segment Information (Details 2)            HTML     40K  
125: R109        Business Segment Information (Details 3)            HTML     42K  
126: R110        Business Segment Information (Details Textual)      HTML     33K  
127: R111        Selected Quarterly Financial Data (Unaudited)       HTML     59K  
                (Details)                                                        
128: R112        Selected Quarterly Financial Data (Unaudited)       HTML     60K  
                (Details Textual)                                                
130: XML         IDEA XML File -- Filing Summary                      XML    241K  
129: EXCEL       IDEA Workbook of Financial Reports                  XLSX    150K  
11: EX-101.INS  XBRL Instance -- idt-20170731                        XML   2.80M 
13: EX-101.CAL  XBRL Calculations -- idt-20170731_cal                XML    224K 
14: EX-101.DEF  XBRL Definitions -- idt-20170731_def                 XML    911K 
15: EX-101.LAB  XBRL Labels -- idt-20170731_lab                      XML   2.07M 
16: EX-101.PRE  XBRL Presentations -- idt-20170731_pre               XML   1.44M 
12: EX-101.SCH  XBRL Schema -- idt-20170731                          XSD    309K 
131: ZIP         XBRL Zipped Folder -- 0001213900-17-010610-xbrl      Zip    253K

‘EX-101.LAB’   —   XBRL Labels — idt-20170731_lab

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommonClassAMember" xml:lang="en-US"> Common Class A [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommonClassAMember" xml:lang="en-US"> Class A common stock [Member] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_929216F4IJ579I98G136_dei_CurrentFiscalYearEndDate"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_dei_DocumentType" xml:lang="en-US"> Document Type </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_dei_DocumentPeriodEndDate" xml:lang="en-US"> Document Period End Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_dei_DocumentPeriodEndDate" xml:lang="en-US"> Document Period End Date </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_dei_DocumentFiscalYearFocus" xml:lang="en-US"> Document Fiscal Year Focus </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_dei_DocumentFiscalYearFocus" xml:lang="en-US"> Document Fiscal Year Focus </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_929216F4IJ579I98G136_dei_DocumentFiscalPeriodFocus"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_dei_DocumentFiscalPeriodFocus" xml:lang="en-US"> Document Fiscal Period Focus </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_dei_DocumentFiscalPeriodFocus" xml:lang="en-US"> Document Fiscal Period Focus </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_350FKH75322F_dei_EntityWellKnownSeasonedIssuer"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_dei_EntityWellKnownSeasonedIssuer" xml:lang="en-US"> Entity Well-known Seasoned Issuer </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_dei_EntityWellKnownSeasonedIssuer" xlink:to="lab_572HMJ97544H_dei_EntityWellKnownSeasonedIssuer"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_929216F4IJ579I98G136_dei_EntityVoluntaryFilers"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_dei_EntityVoluntaryFilers" xml:lang="en-US"> Entity Voluntary Filers </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_dei_EntityVoluntaryFilers" xlink:to="lab_141438H6KL791K10I358_dei_EntityVoluntaryFilers"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_350FKH75322F_dei_EntityCurrentReportingStatus"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_dei_EntityCurrentReportingStatus" xml:lang="en-US"> Entity Current Reporting Status </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_dei_EntityCurrentReportingStatus" xlink:to="lab_572HMJ97544H_dei_EntityCurrentReportingStatus"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_929216F4IJ579I98G136_dei_EntityFilerCategory"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_dei_EntityFilerCategory" xml:lang="en-US"> Entity Filer Category </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_dei_EntityFilerCategory" xml:lang="en-US"> Entity Filer Category </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_dei_EntityFilerCategory" xlink:to="lab_141438H6KL791K10I358_dei_EntityFilerCategory"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_350FKH75322F_dei_EntityPublicFloat"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_dei_EntityPublicFloat" xml:lang="en-US"> Entity Public Float </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_dei_EntityPublicFloat" xlink:to="lab_572HMJ97544H_dei_EntityPublicFloat"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_929216F4IJ579I98G136_dei_EntityCommonStockSharesOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_dei_EntityCommonStockSharesOutstanding" xml:lang="en-US"> Entity Common Stock Shares Outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_dei_EntityCommonStockSharesOutstanding" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_141438H6KL791K10I358_dei_EntityCommonStockSharesOutstanding"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_350FKH75322F_us-gaap_StatementOfFinancialPositionAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StatementOfFinancialPositionAbstract" xml:lang="en-US"> Consolidated Balance Sheets [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StatementOfFinancialPositionAbstract" xml:lang="en-US"> Statement of Financial Position [Abstract] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AssetsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AssetsAbstract" xml:lang="en-US"> Assets [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AssetsAbstract" xml:lang="en-US"> ASSETS </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AssetsAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_AssetsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_350FKH75322F_us-gaap_AssetsCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AssetsCurrentAbstract" xml:lang="en-US"> Assets Current [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AssetsCurrentAbstract" xml:lang="en-US"> CURRENT ASSETS: </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US"> Cash and Cash Equivalents, at Carrying Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US"> Cash and cash equivalents </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US"> Cash and cash equivalents </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US"> Cash and cash equivalents (excluding discontinued operations) at end of period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US"> Cash and cash equivalents at beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsAtCarryingValue" xml:lang="en-US"> Cash and cash equivalents at end of year </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecuritiesCurrent" xlink:label="loc_350FKH75322F_us-gaap_MarketableSecuritiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesCurrent" xml:lang="en-US"> Marketable securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesCurrent" xml:lang="en-US"> Available-for-sale securities: </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesCurrent" xml:lang="en-US"> Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesCurrent" xml:lang="en-US"> Marketable securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesCurrent" xml:lang="en-US"> Total </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesCurrent" xml:lang="en-US"> Marketable securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_MarketableSecuritiesCurrent" xlink:to="lab_572HMJ97544H_us-gaap_MarketableSecuritiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ReceivablesNetCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ReceivablesNetCurrent" xml:lang="en-US"> Receivables Net Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ReceivablesNetCurrent" xml:lang="en-US"> Trade accounts receivable, net of allowance for doubtful accounts of $5,173 at April 30, 2017 and $4,818 at July 31, 2016 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ReceivablesNetCurrent" xml:lang="en-US"> Trade accounts receivable, net of allowance for doubtful accounts of $2,657 and $3,957 at July 31, 2017 and 2016, respectively </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_ReceivablesNetCurrent" xml:lang="en-US"> Receivable from Rafael Holdings, Inc. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ReceivablesNetCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_ReceivablesNetCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_350FKH75322F_us-gaap_PrepaidExpenseCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PrepaidExpenseCurrent" xml:lang="en-US"> Prepaid Expense Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PrepaidExpenseCurrent" xml:lang="en-US"> Prepaid expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PrepaidExpenseCurrent" xlink:to="lab_572HMJ97544H_us-gaap_PrepaidExpenseCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OtherAssetsCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherAssetsCurrent" xml:lang="en-US"> Other Assets, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherAssetsCurrent" xml:lang="en-US"> Other current assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherAssetsCurrent" xml:lang="en-US"> other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OtherAssetsCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_OtherAssetsCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_350FKH75322F_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Assets, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> Assets held for sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> TOTAL CURRENT ASSETS HELD FOR SALE </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> TOTAL CURRENT ASSETS HELD FOR SALE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:to="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AssetsCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AssetsCurrent" xml:lang="en-US"> Assets Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AssetsCurrent" xml:lang="en-US"> TOTAL CURRENT ASSETS HELD FOR SALE </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AssetsCurrent" xml:lang="en-US"> TOTAL CURRENT ASSETS </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AssetsCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_AssetsCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_350FKH75322F_us-gaap_PropertyPlantAndEquipmentNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US"> Property, Plant and Equipment, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US"> Property, plant and equipment, net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentNet" xml:lang="en-US"> Net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_929216F4IJ579I98G136_us-gaap_Goodwill"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_Goodwill" xml:lang="en-US"> Goodwill </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_Goodwill" xml:lang="en-US"> Goodwill </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_Goodwill" xml:lang="en-US"> Beginning Balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_Goodwill" xml:lang="en-US"> Ending Balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_Goodwill" xlink:to="lab_141438H6KL791K10I358_us-gaap_Goodwill"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermInvestments" xlink:label="loc_350FKH75322F_us-gaap_LongTermInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LongTermInvestments" xml:lang="en-US"> Long-term Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LongTermInvestments" xml:lang="en-US"> Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LongTermInvestments" xml:lang="en-US"> Series C convertible notes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_572HMJ97544H_us-gaap_LongTermInvestments" xml:lang="en-US"> Investments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LongTermInvestments" xlink:to="lab_572HMJ97544H_us-gaap_LongTermInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNetNoncurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsNetNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsNetNoncurrent" xml:lang="en-US"> Deferred Tax Assets Net Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsNetNoncurrent" xml:lang="en-US"> Deferred income tax assets, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsNetNoncurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsNetNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_350FKH75322F_us-gaap_OtherAssetsNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OtherAssetsNoncurrent" xml:lang="en-US"> Other Assets Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherAssetsNoncurrent" xml:lang="en-US"> Other assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OtherAssetsNoncurrent" xlink:to="lab_572HMJ97544H_us-gaap_OtherAssetsNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xml:lang="en-US"> Assets held for sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xml:lang="en-US"> Other assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_350FKH75322F_us-gaap_Assets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_Assets" xml:lang="en-US"> Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_Assets" xml:lang="en-US"> Total assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_Assets" xml:lang="en-US"> Total assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_Assets" xml:lang="en-US"> TOTAL ASSETS </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_Assets" xlink:to="lab_572HMJ97544H_us-gaap_Assets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US"> Liabilities and Equity [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xml:lang="en-US"> LIABILITIES AND EQUITY </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_350FKH75322F_us-gaap_LiabilitiesCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesCurrentAbstract" xml:lang="en-US"> Liabilities Current [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesCurrentAbstract" xml:lang="en-US"> CURRENT LIABILITIES: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LiabilitiesCurrentAbstract" xlink:to="lab_572HMJ97544H_us-gaap_LiabilitiesCurrentAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AccountsPayableCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AccountsPayableCurrent" xml:lang="en-US"> Accounts Payable Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AccountsPayableCurrent" xml:lang="en-US"> Trade accounts payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AccountsPayableCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_AccountsPayableCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_350FKH75322F_us-gaap_AccruedLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccruedLiabilitiesCurrent" xml:lang="en-US"> Accrued Liabilities, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccruedLiabilitiesCurrent" xml:lang="en-US"> Accrued expenses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccruedLiabilitiesCurrent" xml:lang="en-US"> TOTAL </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccruedLiabilitiesCurrent" xlink:to="lab_572HMJ97544H_us-gaap_AccruedLiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredRevenueCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredRevenueCurrent" xml:lang="en-US"> Deferred Revenue Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredRevenueCurrent" xml:lang="en-US"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DeferredRevenueCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DeferredRevenueCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_350FKH75322F_us-gaap_OtherLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OtherLiabilitiesCurrent" xml:lang="en-US"> Other Liabilities, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherLiabilitiesCurrent" xml:lang="en-US"> Other current liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherLiabilitiesCurrent" xml:lang="en-US"> Balance, beginning of period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherLiabilitiesCurrent" xml:lang="en-US"> Balance, end of period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OtherLiabilitiesCurrent" xlink:to="lab_572HMJ97544H_us-gaap_OtherLiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Liabilities, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> Liabilities held for sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> TOTAL CURRENT LIABILITIES HELD FOR SALE </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xml:lang="en-US"> TOTAL CURRENT LIABILITIES HELD FOR SALE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_350FKH75322F_us-gaap_LiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesCurrent" xml:lang="en-US"> Liabilities Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesCurrent" xml:lang="en-US"> TOTAL CURRENT LIABILITIES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LiabilitiesCurrent" xlink:to="lab_572HMJ97544H_us-gaap_LiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OtherLiabilitiesNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherLiabilitiesNoncurrent" xml:lang="en-US"> Other Liabilities Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherLiabilitiesNoncurrent" xml:lang="en-US"> Other liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OtherLiabilitiesNoncurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_OtherLiabilitiesNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xlink:label="loc_350FKH75322F_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xml:lang="en-US"> Liabilities held for sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xml:lang="en-US"> TOTAL NONCURRENT LIABILITIES HELD FOR SALE </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xml:lang="en-US"> TOTAL NONCURRENT LIABILITIES HELD FOR SALE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent" xlink:to="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_929216F4IJ579I98G136_us-gaap_Liabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_Liabilities" xml:lang="en-US"> Liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_Liabilities" xml:lang="en-US"> TOTAL LIABILITIES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_Liabilities" xlink:to="lab_141438H6KL791K10I358_us-gaap_Liabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_350FKH75322F_us-gaap_CommitmentsAndContingencies"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommitmentsAndContingencies" xml:lang="en-US"> Commitments And Contingencies </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommitmentsAndContingencies" xml:lang="en-US"> Commitments and contingencies </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CommitmentsAndContingencies" xlink:to="lab_572HMJ97544H_us-gaap_CommitmentsAndContingencies"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityAbstract" xml:lang="en-US"> Stockholders Equity [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityAbstract" xml:lang="en-US"> IDT Corporation stockholders' equity: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StockholdersEquityAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_350FKH75322F_us-gaap_PreferredStockValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PreferredStockValue" xml:lang="en-US"> Preferred Stock Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PreferredStockValue" xml:lang="en-US"> Preferred stock, $.01 par value; authorized shares-10,000; no shares issued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PreferredStockValue" xml:lang="en-US"> Preferred stock, $.01 par value; authorized shares-10,000; no shares issued </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockValue" xml:lang="en-US"> Common Stock Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockValue" xml:lang="en-US"> Common stock, value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CommonStockValue" xlink:to="lab_141438H6KL791K10I358_us-gaap_CommonStockValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_350FKH75322F_us-gaap_AdditionalPaidInCapital"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AdditionalPaidInCapital" xml:lang="en-US"> Additional Paid in Capital </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AdditionalPaidInCapital" xml:lang="en-US"> Additional paid-in capital </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AdditionalPaidInCapital" xlink:to="lab_572HMJ97544H_us-gaap_AdditionalPaidInCapital"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockValue" xml:lang="en-US"> Treasury Stock Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockValue" xml:lang="en-US"> Treasury stock, at cost, consisting of 1,698 and 1,698 shares of Class A common stock and 2,297 and 3,931 shares of Class B common stock at July 31, 2017 and 2016, respectively </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockValue" xlink:to="lab_141438H6KL791K10I358_us-gaap_TreasuryStockValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss), Net of Tax </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US"> Accumulated other comprehensive loss </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US"> Beginning balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xml:lang="en-US"> Ending balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RetainedEarningsAccumulatedDeficit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RetainedEarningsAccumulatedDeficit" xml:lang="en-US"> Retained Earnings Accumulated Deficit </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_RetainedEarningsAccumulatedDeficit" xml:lang="en-US"> Accumulated deficit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="lab_141438H6KL791K10I358_us-gaap_RetainedEarningsAccumulatedDeficit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_350FKH75322F_us-gaap_StockholdersEquity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquity" xml:lang="en-US"> Stockholders' Equity Attributable to Parent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquity" xml:lang="en-US"> Total IDT Corporation stockholders' equity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquity" xml:lang="en-US"> Total IDT Corporation stockholders' equity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquity" xml:lang="en-US"> Beginning Balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquity" xml:lang="en-US"> Ending Balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StockholdersEquity" xlink:to="lab_572HMJ97544H_us-gaap_StockholdersEquity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinorityInterest" xlink:label="loc_929216F4IJ579I98G136_us-gaap_MinorityInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_MinorityInterest" xml:lang="en-US"> Stockholders' Equity Attributable to Noncontrolling Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_MinorityInterest" xml:lang="en-US"> Noncontrolling interests </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_MinorityInterest" xlink:to="lab_141438H6KL791K10I358_us-gaap_MinorityInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_350FKH75322F_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US"> Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US"> TOTAL EQUITY </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US"> Beginning Balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US"> Ending Balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="lab_572HMJ97544H_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LiabilitiesAndStockholdersEquity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US"> Liabilities And Stockholders Equity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LiabilitiesAndStockholdersEquity" xml:lang="en-US"> TOTAL LIABILITIES AND EQUITY </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_141438H6KL791K10I358_us-gaap_LiabilitiesAndStockholdersEquity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_350FKH75322F_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US"> Allowance for Doubtful Accounts Receivable, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US"> Allowance for doubtful accounts </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US"> Allowance for doubtful accounts, Balance at beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US"> Allowance for doubtful accounts, Balance at end of year </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:to="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PreferredStockParOrStatedValuePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PreferredStockParOrStatedValuePerShare" xml:lang="en-US"> Preferred Stock Par Or Stated Value Per Share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PreferredStockParOrStatedValuePerShare" xml:lang="en-US"> Preferred stock, par value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="lab_141438H6KL791K10I358_us-gaap_PreferredStockParOrStatedValuePerShare"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_350FKH75322F_us-gaap_PreferredStockSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PreferredStockSharesAuthorized" xml:lang="en-US"> Preferred Stock Shares Authorized </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PreferredStockSharesAuthorized" xml:lang="en-US"> Preferred stock, authorized shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PreferredStockSharesAuthorized" xlink:to="lab_572HMJ97544H_us-gaap_PreferredStockSharesAuthorized"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PreferredStockSharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PreferredStockSharesIssued" xml:lang="en-US"> Preferred Stock Shares Issued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PreferredStockSharesIssued" xml:lang="en-US"> Preferred stock, shares issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PreferredStockSharesIssued" xlink:to="lab_141438H6KL791K10I358_us-gaap_PreferredStockSharesIssued"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_350FKH75322F_us-gaap_CommonStockParOrStatedValuePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockParOrStatedValuePerShare" xml:lang="en-US"> Common Stock Par Or Stated Value Per Share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockParOrStatedValuePerShare" xml:lang="en-US"> Common stock, par value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="lab_572HMJ97544H_us-gaap_CommonStockParOrStatedValuePerShare"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CommonStockSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockSharesAuthorized" xml:lang="en-US"> Common Stock Shares Authorized </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockSharesAuthorized" xml:lang="en-US"> Common stock, shares authorized </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CommonStockSharesAuthorized" xlink:to="lab_141438H6KL791K10I358_us-gaap_CommonStockSharesAuthorized"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_350FKH75322F_us-gaap_CommonStockSharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockSharesIssued" xml:lang="en-US"> Common Stock Shares Issued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockSharesIssued" xml:lang="en-US"> Common stock, shares issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CommonStockSharesIssued" xlink:to="lab_572HMJ97544H_us-gaap_CommonStockSharesIssued"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CommonStockSharesOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockSharesOutstanding" xml:lang="en-US"> Common Stock Shares Outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockSharesOutstanding" xml:lang="en-US"> Common stock, shares outstanding </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_350FKH75322F_us-gaap_TreasuryStockShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_TreasuryStockShares" xml:lang="en-US"> Treasury Stock, Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_TreasuryStockShares" xml:lang="en-US"> Treasury stock, common stock shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_TreasuryStockShares" xml:lang="en-US"> Treasury shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_TreasuryStockShares" xlink:to="lab_572HMJ97544H_us-gaap_TreasuryStockShares"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeStatementAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeStatementAbstract" xml:lang="en-US"> Consolidated Statements of Income [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeStatementAbstract" xml:lang="en-US"> Income Statement [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncomeStatementAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncomeStatementAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_350FKH75322F_us-gaap_Revenues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_Revenues" xml:lang="en-US"> Revenues </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_Revenues" xml:lang="en-US"> TOTAL REVENUES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_Revenues" xml:lang="en-US"> REVENUES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_Revenues" xml:lang="en-US"> TOTAL REVENUES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/measurementGuidance" xlink:label="lab_572HMJ97544H_us-gaap_Revenues" xml:lang="en-US"> Revenues </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingExpensesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingExpensesAbstract" xml:lang="en-US"> Operating Expenses [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingExpensesAbstract" xml:lang="en-US"> COSTS AND EXPENSES: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingExpensesAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingExpensesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_350FKH75322F_us-gaap_CostOfRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CostOfRevenue" xml:lang="en-US"> Cost of Revenue </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CostOfRevenue" xml:lang="en-US"> Direct cost of revenues </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CostOfRevenue" xml:lang="en-US"> Direct cost of revenues (exclusive of depreciation and amortization) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_CostOfRevenue" xml:lang="en-US"> Direct cost of revenues </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CostOfRevenue" xlink:to="lab_572HMJ97544H_us-gaap_CostOfRevenue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SellingGeneralAndAdministrativeExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SellingGeneralAndAdministrativeExpense" xml:lang="en-US"> Selling, General and Administrative Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SellingGeneralAndAdministrativeExpense" xml:lang="en-US"> Selling, general and administrative (i) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SellingGeneralAndAdministrativeExpense" xml:lang="en-US"> selling, general and administrative expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SellingGeneralAndAdministrativeExpense" xlink:to="lab_141438H6KL791K10I358_us-gaap_SellingGeneralAndAdministrativeExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationAndAmortization" xlink:label="loc_350FKH75322F_us-gaap_DepreciationAndAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DepreciationAndAmortization" xml:lang="en-US"> Depreciation, Depletion and Amortization, Nonproduction </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DepreciationAndAmortization" xml:lang="en-US"> Depreciation and amortization </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DepreciationAndAmortization" xml:lang="en-US"> Depreciation and amortization </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DepreciationAndAmortization" xlink:to="lab_572HMJ97544H_us-gaap_DepreciationAndAmortization"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ResearchAndDevelopmentExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ResearchAndDevelopmentExpense" xml:lang="en-US"> Research and Development Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ResearchAndDevelopmentExpense" xml:lang="en-US"> Research and development </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ResearchAndDevelopmentExpense" xlink:to="lab_141438H6KL791K10I358_us-gaap_ResearchAndDevelopmentExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SeveranceCosts1" xlink:label="loc_350FKH75322F_us-gaap_SeveranceCosts1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SeveranceCosts1" xml:lang="en-US"> Severance Costs </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SeveranceCosts1" xml:lang="en-US"> Severance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SeveranceCosts1" xml:lang="en-US"> Severance expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_SeveranceCosts1" xml:lang="en-US"> Severance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_572HMJ97544H_us-gaap_SeveranceCosts1" xml:lang="en-US"> Severance expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SeveranceCosts1" xlink:to="lab_572HMJ97544H_us-gaap_SeveranceCosts1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingExpenses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingExpenses" xml:lang="en-US"> Operating Expenses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingExpenses" xml:lang="en-US"> TOTAL COSTS AND EXPENSES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingExpenses" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingExpenses"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherGeneralExpense" xlink:label="loc_350FKH75322F_us-gaap_OtherGeneralExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OtherGeneralExpense" xml:lang="en-US"> Other General Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherGeneralExpense" xml:lang="en-US"> Other operating expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherGeneralExpense" xml:lang="en-US"> Legal fees </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherGeneralExpense" xml:lang="en-US"> Other (see Note 12) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OtherGeneralExpense" xlink:to="lab_572HMJ97544H_us-gaap_OtherGeneralExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfInvestments" xlink:label="loc_929216F4IJ579I98G136_us-gaap_GainLossOnSaleOfInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfInvestments" xml:lang="en-US"> Gain (Loss) on Sale of Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfInvestments" xml:lang="en-US"> (Adjustment to) gain on sale of member interest in Visa Europe Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfInvestments" xml:lang="en-US"> Gain on sale of member interest in Visa Europe Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfInvestments" xml:lang="en-US"> Gain on sale of member interest in Visa Europe Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfInvestments" xml:lang="en-US"> Gain on sale of interest in Visa Europe </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_GainLossOnSaleOfInvestments" xlink:to="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainOrLossOnSaleOfStockInSubsidiary" xlink:label="loc_350FKH75322F_us-gaap_GainOrLossOnSaleOfStockInSubsidiary"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_GainOrLossOnSaleOfStockInSubsidiary" xml:lang="en-US"> Gain (Loss) on Disposition of Stock in Subsidiary </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_GainOrLossOnSaleOfStockInSubsidiary" xml:lang="en-US"> Gain on sale of interest in Fabrix Systems, Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_GainOrLossOnSaleOfStockInSubsidiary" xml:lang="en-US"> Gain on sale of interest in Fabrix Systems Ltd. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_GainOrLossOnSaleOfStockInSubsidiary" xlink:to="lab_572HMJ97544H_us-gaap_GainOrLossOnSaleOfStockInSubsidiary"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingIncomeLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingIncomeLoss" xml:lang="en-US"> Operating Income (Loss) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingIncomeLoss" xml:lang="en-US"> Income (loss) from operations </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingIncomeLoss" xml:lang="en-US"> Income (loss) from operations </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingIncomeLoss" xml:lang="en-US"> Income from operations </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingIncomeLoss" xml:lang="en-US"> Income from operations </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingIncomeLoss" xml:lang="en-US"> Loss from operations expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingIncomeLoss" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingIncomeLoss"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_350FKH75322F_us-gaap_InterestIncomeExpenseNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_InterestIncomeExpenseNet" xml:lang="en-US"> Interest Income Expense Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_InterestIncomeExpenseNet" xml:lang="en-US"> Interest income (expense), net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_InterestIncomeExpenseNet" xlink:to="lab_572HMJ97544H_us-gaap_InterestIncomeExpenseNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_929216F4IJ579I98G136_us-gaap_NonoperatingIncomeExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_NonoperatingIncomeExpense" xml:lang="en-US"> Nonoperating Income (Expense) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_NonoperatingIncomeExpense" xml:lang="en-US"> Other income (expense), net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_NonoperatingIncomeExpense" xml:lang="en-US"> TOTAL </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_NonoperatingIncomeExpense" xlink:to="lab_141438H6KL791K10I358_us-gaap_NonoperatingIncomeExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_350FKH75322F_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US"> Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US"> INCOME BEFORE INCOME TAXES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US"> INCOME BEFORE INCOME TAXES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US"> Income before income taxes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US"> INCOME BEFORE INCOME TAXES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_572HMJ97544H_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xml:lang="en-US"> INCOME (LOSS) BEFORE INCOME TAXES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="lab_572HMJ97544H_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeTaxExpenseBenefit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US"> Income Tax Expense (Benefit) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US"> Benefit from income taxes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US"> BENEFIT FROM (PROVISION FOR) INCOME TAXES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US"> Benefit from income taxes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US"> Benefit from (provision for) income taxes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxExpenseBenefit" xml:lang="en-US"> BENEFIT FROM (PROVISION FOR) INCOME TAXES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncomeTaxExpenseBenefit" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncomeTaxExpenseBenefit"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_350FKH75322F_us-gaap_ProfitLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProfitLoss" xml:lang="en-US"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_NetIncomeLoss" xml:lang="en-US"> Net Income (Loss) Attributable to Parent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EarningsPerShareAbstract" xml:lang="en-US"> Earnings per share attributable to IDT Corporation common stockholders: </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EarningsPerShareDiluted" xml:lang="en-US"> Net income (loss) per share - diluted </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US"> Weighted Average Number of Shares Outstanding, Basic </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US"> Weighted-average number of shares used in calculation of basic earnings per share </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US"> Diluted </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensation"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_350FKH75322F_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US"> Comprehensive income </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US"> Comprehensive income (loss) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xml:lang="en-US"> Comprehensive income </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="loc_350FKH75322F_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xml:lang="en-US"> Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest </label>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:to="lab_572HMJ97544H_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ComprehensiveIncomeNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNetOfTax" xml:lang="en-US"> Comprehensive Income Net Of Tax </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNetOfTax" xml:lang="en-US"> COMPREHENSIVE INCOME ATTRIBUTABLE TO IDT CORPORATION </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_350FKH75322F_us-gaap_StatementOfStockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StatementOfStockholdersEquityAbstract" xml:lang="en-US"> Statement of Stockholders' Equity [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="lab_572HMJ97544H_us-gaap_StatementOfStockholdersEquityAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidatedEntitiesAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ConsolidatedEntitiesAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConsolidatedEntitiesAxis" xml:lang="en-US"> Consolidated Entities [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ConsolidatedEntitiesAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_ConsolidatedEntitiesAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidatedEntitiesDomain" xlink:label="loc_350FKH75322F_us-gaap_ConsolidatedEntitiesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ConsolidatedEntitiesDomain" xml:lang="en-US"> Consolidated Entities [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ConsolidatedEntitiesDomain" xlink:to="lab_572HMJ97544H_us-gaap_ConsolidatedEntitiesDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ParentCompanyMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ParentCompanyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ParentCompanyMember" xml:lang="en-US"> Parent Company [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ParentCompanyMember" xml:lang="en-US"> IDT Corp </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ParentCompanyMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_ParentCompanyMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_350FKH75322F_us-gaap_StatementEquityComponentsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StatementEquityComponentsAxis" xml:lang="en-US"> Equity Components [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StatementEquityComponentsAxis" xml:lang="en-US"> Equity Components [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_572HMJ97544H_us-gaap_StatementEquityComponentsAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EquityComponentDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EquityComponentDomain" xml:lang="en-US"> Equity Component [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EquityComponentDomain" xml:lang="en-US"> Equity Component [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EquityComponentDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_EquityComponentDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_350FKH75322F_us-gaap_AdditionalPaidInCapitalMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AdditionalPaidInCapitalMember" xml:lang="en-US"> Additional Paid-in Capital [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AdditionalPaidInCapitalMember" xml:lang="en-US"> Additional Paid-In Capital </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_572HMJ97544H_us-gaap_AdditionalPaidInCapitalMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockMember" xml:lang="en-US"> Treasury Stock [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockMember" xml:lang="en-US"> Treasury Stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_TreasuryStockMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US"> AOCI Attributable to Parent [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US"> Accumulated Other Comprehensive Income </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xml:lang="en-US"> Accumulated other comprehensive income (loss) [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RetainedEarningsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RetainedEarningsMember" xml:lang="en-US"> Retained Earnings [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_RetainedEarningsMember" xml:lang="en-US"> Accumulated Deficit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RetainedEarningsMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_RetainedEarningsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_350FKH75322F_us-gaap_NoncontrollingInterestMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_NoncontrollingInterestMember" xml:lang="en-US"> Noncontrolling Interest [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_NoncontrollingInterestMember" xml:lang="en-US"> Noncontrolling Interests [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_NoncontrollingInterestMember" xml:lang="en-US"> Noncontrolling Interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_NoncontrollingInterestMember" xml:lang="en-US"> Noncontrolling Interests [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_NoncontrollingInterestMember" xlink:to="lab_572HMJ97544H_us-gaap_NoncontrollingInterestMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharesIssued" xml:lang="en-US"> Shares, Issued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharesIssued" xml:lang="en-US"> Beginning Balance, Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharesIssued" xml:lang="en-US"> Ending Balance, Shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SharesIssued" xlink:to="lab_141438H6KL791K10I358_us-gaap_SharesIssued"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsCash" xlink:label="loc_350FKH75322F_us-gaap_DividendsCash"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DividendsCash" xml:lang="en-US"> Dividends, Cash </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DividendsCash" xml:lang="en-US"> Dividends declared ($0.19 per share) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DividendsCash" xml:lang="en-US"> Dividends declared </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_DividendsCash" xml:lang="en-US"> Dividends declared </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_DividendsCash" xml:lang="en-US"> Dividends declared </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DividendsCash" xml:lang="en-US"> Dividends declared </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DividendsCash" xlink:to="lab_572HMJ97544H_us-gaap_DividendsCash"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RepurchaseOfRestrictedStock" xlink:label="loc_929216F4IJ579I98G136_idt_RepurchaseOfRestrictedStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RepurchaseOfRestrictedStock" xml:lang="en-US"> Repurchase Of Restricted Stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RepurchaseOfRestrictedStock" xml:lang="en-US"> Restricted Class B common stock purchased from employees </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_RepurchaseOfRestrictedStock" xml:lang="en-US"> Repurchase of restricted stock. </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RepurchaseOfCommonStockUnderStockRepurchaseProgram" xlink:label="loc_350FKH75322F_idt_RepurchaseOfCommonStockUnderStockRepurchaseProgram"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RepurchaseOfCommonStockUnderStockRepurchaseProgram" xml:lang="en-US"> Repurchase Of Common Stock Under Stock Repurchase Program </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_RepurchaseOfCommonStockUnderStockRepurchaseProgram" xml:lang="en-US"> Repurchases of Class B common stock through repurchase program </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_RepurchaseOfCommonStockUnderStockRepurchaseProgram" xml:lang="en-US"> Repurchase of common stock under stock repurchase program. </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xml:lang="en-US"> Stock Issued During Period, Value, Stock Options Exercised </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xml:lang="en-US"> Exercise of stock options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesOther" xlink:label="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodSharesOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesOther" xml:lang="en-US"> Stock Issued During Period, Shares, Other </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesOther" xml:lang="en-US"> Exercise of stock options, Shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodSharesOther" xlink:to="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesOther"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockIssuedDuringPeriodValueStockOptionsExercisedInSubsidiary" xlink:label="loc_929216F4IJ579I98G136_idt_StockIssuedDuringPeriodValueStockOptionsExercisedInSubsidiary"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodValueStockOptionsExercisedInSubsidiary" xml:lang="en-US"> Stock Issued During Period Value Stock Options Exercised In Subsidiary </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodValueStockOptionsExercisedInSubsidiary" xml:lang="en-US"> Exercise of subsidiary stock options </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodValueStockOptionsExercisedInSubsidiary" xml:lang="en-US"> Stock issued during period value stock options exercised in subsidiary. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_StockIssuedDuringPeriodValueStockOptionsExercisedInSubsidiary" xlink:to="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodValueStockOptionsExercisedInSubsidiary"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockBasedCompensation" xlink:label="loc_350FKH75322F_idt_StockBasedCompensation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_StockBasedCompensation" xml:lang="en-US"> Stock Based Compensation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_StockBasedCompensation" xml:lang="en-US"> Stock-based compensation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_StockBasedCompensation" xml:lang="en-US"> Stock-based compensation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_StockBasedCompensation" xml:lang="en-US"> Stock based compensation. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_StockBasedCompensation" xlink:to="lab_572HMJ97544H_idt_StockBasedCompensation"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockBasedCompensationShares" xlink:label="loc_929216F4IJ579I98G136_idt_StockBasedCompensationShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_StockBasedCompensationShares" xml:lang="en-US"> Stock Based Compensation Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_StockBasedCompensationShares" xml:lang="en-US"> Stock-based compensation, Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_StockBasedCompensationShares" xml:lang="en-US"> Share based compensation shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_StockBasedCompensationShares" xlink:to="lab_141438H6KL791K10I358_idt_StockBasedCompensationShares"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="loc_350FKH75322F_us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xml:lang="en-US"> Proceeds from Issuance or Sale of Equity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xml:lang="en-US"> Sale of Class B common stock to Howard S. Jonas </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xml:lang="en-US"> Sale of Class B common stock to Howard S. Jonas </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/measurementGuidance" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xml:lang="en-US"> Class B common stock aggregate consideration </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:to="lab_572HMJ97544H_us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionPurchaseOfStockOfSubsidiary" xlink:label="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionPurchaseOfStockOfSubsidiary"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionPurchaseOfStockOfSubsidiary" xml:lang="en-US"> Related Party Transaction Purchase Of Stock Of Subsidiary </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionPurchaseOfStockOfSubsidiary" xml:lang="en-US"> Sale of interest and rights in Rafael Pharmaceuticals, Inc. to Howard S. Jonas (see Note 2) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionPurchaseOfStockOfSubsidiary" xml:lang="en-US"> Related party transaction purchase of stock of subsidiary. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionPurchaseOfStockOfSubsidiary" xlink:to="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionPurchaseOfStockOfSubsidiary"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xlink:label="loc_350FKH75322F_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xml:lang="en-US"> Proceeds from Sale of Interest in Corporate Unit </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xml:lang="en-US"> Purchase price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xml:lang="en-US"> Issuance of member interests in CS Pharma Holdings, LLC (see Note 2) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xml:lang="en-US"> Proceeds from sale of member interests in CS Pharma Holdings, LLC </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xml:lang="en-US"> Proceeds from sale of Zedge equity prior to the spin-off </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xml:lang="en-US"> Proceeds from sale of member interests in CS Pharma Holdings, LLC </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit" xlink:to="lab_572HMJ97544H_us-gaap_ProceedsFromSaleOfInterestInCorporateUnit"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RestrictedStockIssuedToEmployeesAndDirectors" xlink:label="loc_929216F4IJ579I98G136_idt_RestrictedStockIssuedToEmployeesAndDirectors"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RestrictedStockIssuedToEmployeesAndDirectors" xml:lang="en-US"> Restricted Stock Issued To Employees And Directors </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RestrictedStockIssuedToEmployeesAndDirectors" xml:lang="en-US"> Restricted stock issued to employees and directors </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_RestrictedStockIssuedToEmployeesAndDirectors" xml:lang="en-US"> Value of restricted stock issued to employees and directors. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RestrictedStockIssuedToEmployeesAndDirectors" xlink:to="lab_141438H6KL791K10I358_idt_RestrictedStockIssuedToEmployeesAndDirectors"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RestrictedStockIssuedToEmployeesAndDirectorsShares" xlink:label="loc_350FKH75322F_idt_RestrictedStockIssuedToEmployeesAndDirectorsShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RestrictedStockIssuedToEmployeesAndDirectorsShares" xml:lang="en-US"> Restricted Stock Issued To Employees And Directors Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_RestrictedStockIssuedToEmployeesAndDirectorsShares" xml:lang="en-US"> Restricted stock issued to employees and directors, Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_RestrictedStockIssuedToEmployeesAndDirectorsShares" xml:lang="en-US"> Number of restricted stock issued to employees and directors. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RestrictedStockIssuedToEmployeesAndDirectorsShares" xlink:to="lab_572HMJ97544H_idt_RestrictedStockIssuedToEmployeesAndDirectorsShares"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DefinedContributionPlanEmployerMatchingContributionInEmployerSharesValueOfShares" xlink:label="loc_929216F4IJ579I98G136_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerSharesValueOfShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerSharesValueOfShares" xml:lang="en-US"> Defined Contribution Plan Employer Matching Contribution In Employer Shares Value Of Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerSharesValueOfShares" xml:lang="en-US"> Stock issued for matching contributions to the 401(k) Plan </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerSharesValueOfShares" xml:lang="en-US"> Defined contribution plan employer matching contribution in employer shares value of shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerSharesValueOfShares" xlink:to="lab_141438H6KL791K10I358_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerSharesValueOfShares"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares" xlink:label="loc_350FKH75322F_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares" xml:lang="en-US"> Defined Contribution Plan Employer Matching Contribution In Employer Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares" xml:lang="en-US"> Class B common stock to the plan for matching contributions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares" xml:lang="en-US"> Stock issued for matching contributions to the 401(k) Plan, Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares" xml:lang="en-US"> Defined Contribution Plan Employer Matching Contribution In Employer Shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares" xlink:to="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionInEmployerShares"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US"> Stock Issued During Period, Value, New Issues </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US"> Issuance of member interests in CS Pharma Holdings, LLC </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US"> Class B common stock aggregate consideration </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueNewIssues" xml:lang="en-US"> Sale of Zedge equity prior to the spin-off </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PurchaseOfClassBCommonStockFromRelatedParty" xlink:label="loc_350FKH75322F_idt_PurchaseOfClassBCommonStockFromRelatedParty"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_PurchaseOfClassBCommonStockFromRelatedParty" xml:lang="en-US"> Purchase Of Class B Common Stock From Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_PurchaseOfClassBCommonStockFromRelatedParty" xml:lang="en-US"> Purchase of Class B common stock from Howard S. Jonas </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_PurchaseOfClassBCommonStockFromRelatedParty" xml:lang="en-US"> Purchase of Class B common stock from Howard S. Jonas. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_PurchaseOfClassBCommonStockFromRelatedParty" xlink:to="lab_572HMJ97544H_idt_PurchaseOfClassBCommonStockFromRelatedParty"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DistributionToNoncontrollingInterests" xlink:label="loc_929216F4IJ579I98G136_idt_DistributionToNoncontrollingInterests"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DistributionToNoncontrollingInterests" xml:lang="en-US"> Distribution To Noncontrolling Interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DistributionToNoncontrollingInterests" xml:lang="en-US"> Distributions to noncontrolling interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_DistributionToNoncontrollingInterests" xml:lang="en-US"> The amount distribution to no controlling interests. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DistributionToNoncontrollingInterests" xlink:to="lab_141438H6KL791K10I358_idt_DistributionToNoncontrollingInterests"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale" xlink:label="loc_350FKH75322F_idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale" xml:lang="en-US"> Stockholders Equity Decrease From Deconsolidation Due To Subsidiary Sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale" xml:lang="en-US"> Sale of interest in Fabrix Systems Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale" xml:lang="en-US"> Sale of interest in Fabrix Systems Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale" xml:lang="en-US"> Stockholders equity decrease from deconsolidation due to subsidiary sale. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale" xlink:to="lab_572HMJ97544H_idt_StockholdersEquityDecreaseFromDeconsolidationDueToSubsidiarySale"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteSpinoffTransaction" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StockholdersEquityNoteSpinoffTransaction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityNoteSpinoffTransaction" xml:lang="en-US"> Stockholders' Equity Note, Spinoff Transaction </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityNoteSpinoffTransaction" xml:lang="en-US"> Zedge Spin-Off </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StockholdersEquityNoteSpinoffTransaction" xlink:to="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityNoteSpinoffTransaction"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AdjustmentsToNoncontrollingInterestOther" xlink:label="loc_350FKH75322F_idt_AdjustmentsToNoncontrollingInterestOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_AdjustmentsToNoncontrollingInterestOther" xml:lang="en-US"> Adjustments To Noncontrolling Interest Other </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_AdjustmentsToNoncontrollingInterestOther" xml:lang="en-US"> Other </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_AdjustmentsToNoncontrollingInterestOther" xml:lang="en-US"> Adjustments to noncontrolling interest othe. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_AdjustmentsToNoncontrollingInterestOther" xlink:to="lab_572HMJ97544H_idt_AdjustmentsToNoncontrollingInterestOther"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CommonStockDividendsPerShareDeclared"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockDividendsPerShareDeclared" xml:lang="en-US"> Common Stock, Dividends, Per Share, Declared </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockDividendsPerShareDeclared" xml:lang="en-US"> Dividends declared per common share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockDividendsPerShareDeclared" xml:lang="en-US"> Dividends declared, per share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CommonStockDividendsPerShareDeclared" xml:lang="en-US"> Dividends declared, per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CommonStockDividendsPerShareDeclared" xlink:to="lab_141438H6KL791K10I358_us-gaap_CommonStockDividendsPerShareDeclared"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_350FKH75322F_us-gaap_StatementOfCashFlowsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StatementOfCashFlowsAbstract" xml:lang="en-US"> Consolidated Statements of Cash Flows [Abstract] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US"> OPERATING ACTIVITIES </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_350FKH75322F_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US"> Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US"> Adjustments to reconcile net income to net cash provided by operating activities: </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US"> Adjustments to reconcile net income to net cash provided by operating activities: </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxesAndTaxCredits" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredIncomeTaxesAndTaxCredits" xml:lang="en-US"> Deferred Income Taxes And Tax Credits </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredIncomeTaxesAndTaxCredits" xml:lang="en-US"> Deferred income taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DeferredIncomeTaxesAndTaxCredits" xlink:to="lab_141438H6KL791K10I358_us-gaap_DeferredIncomeTaxesAndTaxCredits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_350FKH75322F_us-gaap_ProvisionForDoubtfulAccounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProvisionForDoubtfulAccounts" xml:lang="en-US"> Provision for Doubtful Accounts </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProvisionForDoubtfulAccounts" xml:lang="en-US"> Allowance for doubtful accounts, Additions charged to costs and expenses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProvisionForDoubtfulAccounts" xml:lang="en-US"> Provision for doubtful accounts receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProvisionForDoubtfulAccounts" xlink:to="lab_572HMJ97544H_us-gaap_ProvisionForDoubtfulAccounts"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_UnadjustedGainOnSaleOfInvestments" xlink:label="loc_929216F4IJ579I98G136_idt_UnadjustedGainOnSaleOfInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_UnadjustedGainOnSaleOfInvestments" xml:lang="en-US"> Unadjusted Gain On Sale Of Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_UnadjustedGainOnSaleOfInvestments" xml:lang="en-US"> The unadjusted gain on sale of investments. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_idt_UnadjustedGainOnSaleOfInvestments" xml:lang="en-US"> Gain on sale of member interest in Visa Europe Ltd. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_UnadjustedGainOnSaleOfInvestments" xlink:to="lab_141438H6KL791K10I358_idt_UnadjustedGainOnSaleOfInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" xlink:label="loc_350FKH75322F_us-gaap_AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" xml:lang="en-US"> Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" xml:lang="en-US"> Net realized gains from investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" xml:lang="en-US"> Net realized (gain) loss from marketable securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments" xlink:to="lab_572HMJ97544H_us-gaap_AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeLossFromEquityMethodInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeLossFromEquityMethodInvestments" xml:lang="en-US"> Income (Loss) from Equity Method Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeLossFromEquityMethodInvestments" xml:lang="en-US"> Interest in the equity of investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeLossFromEquityMethodInvestments" xml:lang="en-US"> Interest in the equity of investments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncomeLossFromEquityMethodInvestments" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncomeLossFromEquityMethodInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_350FKH75322F_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US"> Increase Decrease In Operating Capital [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xml:lang="en-US"> Change in assets and liabilities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xml:lang="en-US"> Increase Decrease In Restricted Cash For Operating Activities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xml:lang="en-US"> Restricted cash and cash equivalents </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xml:lang="en-US"> Restricted cash and cash equivalents </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_350FKH75322F_us-gaap_IncreaseDecreaseInAccountsReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInAccountsReceivable" xml:lang="en-US"> Increase Decrease In Accounts Receivable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInAccountsReceivable" xml:lang="en-US"> Trade accounts receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInAccountsReceivable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US"> Increase Decrease In Prepaid Deferred Expense And Other Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xml:lang="en-US"> Prepaid expenses, other current assets and other assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_350FKH75322F_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xml:lang="en-US"> Increase Decrease In Accounts Payable And Accrued Liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xml:lang="en-US"> Trade accounts payable, accrued expenses, other current liabilities and other liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xml:lang="en-US"> Trade accounts payable, accrued expenses, other current liabilities and other liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerDeposits" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncreaseDecreaseInCustomerDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInCustomerDeposits" xml:lang="en-US"> Increase Decrease In Customer Deposits </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInCustomerDeposits" xml:lang="en-US"> Customer deposits </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncreaseDecreaseInCustomerDeposits" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncreaseDecreaseInCustomerDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_350FKH75322F_us-gaap_IncreaseDecreaseInDeferredRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInDeferredRevenue" xml:lang="en-US"> Increase Decrease In Deferred Revenue </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInDeferredRevenue" xml:lang="en-US"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="lab_572HMJ97544H_us-gaap_IncreaseDecreaseInDeferredRevenue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_929216F4IJ579I98G136_us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInOperatingActivities" xml:lang="en-US"> Net cash provided by operating activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_350FKH75322F_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xml:lang="en-US"> INVESTING ACTIVITIES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="lab_572HMJ97544H_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US"> Payments To Acquire Property Plant And Equipment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US"> Capital expenditures </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_350FKH75322F_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xml:lang="en-US"> Payments to Acquire Businesses, Net of Cash Acquired </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xml:lang="en-US"> Payment for acquisition, net of cash acquired </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:to="lab_572HMJ97544H_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xlink:label="loc_929216F4IJ579I98G136_idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xml:lang="en-US"> Cash received from divestiture of interest in consolidated subsidiaries parent only portion </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xml:lang="en-US"> Cash received from divestiture of interest in consolidated subsidiaries parent only portion </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xml:lang="en-US"> Proceeds from sale of interest in Fabrix Systems Ltd., net of cash and cash equivalents sold </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xml:lang="en-US"> It represent cash received from divestiture of interest in consolidated subsidiaries parent only portion. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xlink:to="lab_141438H6KL791K10I358_idt_CashReceivedFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromSaleOfMemberInterest" xlink:label="loc_350FKH75322F_idt_ProceedsFromSaleOfMemberInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfMemberInterest" xml:lang="en-US"> Proceeds From Sale Of Member Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfMemberInterest" xml:lang="en-US"> Proceeds from sale of member interest in Visa Europe Ltd </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfMemberInterest" xml:lang="en-US"> The cash inflow associated with the sale of member interest during the period. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ProceedsFromSaleOfMemberInterest" xlink:to="lab_572HMJ97544H_idt_ProceedsFromSaleOfMemberInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquireInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireInvestments" xml:lang="en-US"> Payments to Acquire Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireInvestments" xml:lang="en-US"> Purchase of investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireInvestments" xml:lang="en-US"> Cash used for investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireInvestments" xml:lang="en-US"> Cash used for purchase of investments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquireInvestments" xlink:to="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:label="loc_350FKH75322F_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xml:lang="en-US"> Proceeds from Sale, Maturity and Collection of Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xml:lang="en-US"> Proceeds from sales and redemptions of investments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments" xlink:to="lab_572HMJ97544H_us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireMarketableSecurities" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquireMarketableSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireMarketableSecurities" xml:lang="en-US"> Payments to Acquire Marketable Securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireMarketableSecurities" xml:lang="en-US"> Purchases of marketable securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:to="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireMarketableSecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:label="loc_350FKH75322F_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xml:lang="en-US"> Proceeds from Sale and Maturity of Marketable Securities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xml:lang="en-US"> Sale of shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xml:lang="en-US"> Proceeds from maturities and sales of marketable securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:to="lab_572HMJ97544H_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_929216F4IJ579I98G136_us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInInvestingActivities" xml:lang="en-US"> Net cash (used in) provided by investing activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="lab_141438H6KL791K10I358_us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_350FKH75322F_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xml:lang="en-US"> FINANCING ACTIVITIES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="lab_572HMJ97544H_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PaymentsOfDividendsCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsOfDividendsCommonStock" xml:lang="en-US"> Dividends paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsOfDividendsCommonStock" xml:lang="en-US"> Dividends declared ($0.75 per share) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsOfDividendsCommonStock" xml:lang="en-US"> Dividends paid </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PaymentsOfDividendsCommonStock" xlink:to="lab_141438H6KL791K10I358_us-gaap_PaymentsOfDividendsCommonStock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfCapitalDistribution" xlink:label="loc_350FKH75322F_us-gaap_PaymentsOfCapitalDistribution"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PaymentsOfCapitalDistribution" xml:lang="en-US"> Distributions to noncontrolling interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PaymentsOfCapitalDistribution" xml:lang="en-US"> Distributions to noncontrolling interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_PaymentsOfCapitalDistribution" xml:lang="en-US"> Distributions to noncontrolling interests </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PaymentsOfCapitalDistribution" xlink:to="lab_572HMJ97544H_us-gaap_PaymentsOfCapitalDistribution"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromSaleOfInterestInRelatedParty" xlink:label="loc_929216F4IJ579I98G136_idt_ProceedsFromSaleOfInterestInRelatedParty"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInRelatedParty" xml:lang="en-US"> Proceeds From Sale Of Interest In Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInRelatedParty" xml:lang="en-US"> Proceeds from sale of interest and rights in Rafael Pharmaceuticals, Inc. to Howard S. Jonas </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInRelatedParty" xml:lang="en-US"> The proceeds from the sale of an interest to related party. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ProceedsFromSaleOfInterestInRelatedParty" xlink:to="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInRelatedParty"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromSaleOfInterestInLimitedLiabilityCompany" xlink:label="loc_350FKH75322F_idt_ProceedsFromSaleOfInterestInLimitedLiabilityCompany"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInLimitedLiabilityCompany" xml:lang="en-US"> Proceeds From Sale Of Interest In Limited Liability Company </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInLimitedLiabilityCompany" xml:lang="en-US"> Proceeds from sale of interest in limited liability company. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInLimitedLiabilityCompany" xml:lang="en-US"> Proceeds from sale of member interests in CS Pharma Holdings, LLC </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ProceedsFromSaleOfInterestInLimitedLiabilityCompany" xlink:to="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInLimitedLiabilityCompany"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashDivestedFromDeconsolidation" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CashDivestedFromDeconsolidation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashDivestedFromDeconsolidation" xml:lang="en-US"> Cash Divested from Deconsolidation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashDivestedFromDeconsolidation" xml:lang="en-US"> Company intends to contribute in cash </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashDivestedFromDeconsolidation" xml:lang="en-US"> Cash of Zedge deconsolidated as a result of spin-off </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CashDivestedFromDeconsolidation" xlink:to="lab_141438H6KL791K10I358_us-gaap_CashDivestedFromDeconsolidation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromOtherEquity" xlink:label="loc_350FKH75322F_us-gaap_ProceedsFromOtherEquity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromOtherEquity" xml:lang="en-US"> Proceeds from Other Equity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromOtherEquity" xml:lang="en-US"> Proceeds from sale of Zedge equity prior to the spin-off </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProceedsFromOtherEquity" xlink:to="lab_572HMJ97544H_us-gaap_ProceedsFromOtherEquity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ProceedsFromStockOptionsExercised"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ProceedsFromStockOptionsExercised" xml:lang="en-US"> Proceeds from Stock Options Exercised </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ProceedsFromStockOptionsExercised" xml:lang="en-US"> Proceeds from exercise of stock options </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ProceedsFromStockOptionsExercised" xml:lang="en-US"> Proceeds from exercise of stock options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ProceedsFromStockOptionsExercised" xlink:to="lab_141438H6KL791K10I358_us-gaap_ProceedsFromStockOptionsExercised"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="loc_350FKH75322F_us-gaap_RepaymentsOfLongTermDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RepaymentsOfLongTermDebt" xml:lang="en-US"> Repayments Of Long Term Debt </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_RepaymentsOfLongTermDebt" xml:lang="en-US"> Repayments of borrowings including revolving credit loan payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RepaymentsOfLongTermDebt" xlink:to="lab_572HMJ97544H_us-gaap_RepaymentsOfLongTermDebt"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PaymentsForRepurchaseOfCommonStockFromRelatedParty" xlink:label="loc_929216F4IJ579I98G136_idt_PaymentsForRepurchaseOfCommonStockFromRelatedParty"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_PaymentsForRepurchaseOfCommonStockFromRelatedParty" xml:lang="en-US"> Payments For Repurchase Of Common Stock From Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_PaymentsForRepurchaseOfCommonStockFromRelatedParty" xml:lang="en-US"> The cash outflow to reacquire common stock from related party during the period. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_idt_PaymentsForRepurchaseOfCommonStockFromRelatedParty" xml:lang="en-US"> Purchase of Class B common stock from Howard S. Jonas </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_PaymentsForRepurchaseOfCommonStockFromRelatedParty" xlink:to="lab_141438H6KL791K10I358_idt_PaymentsForRepurchaseOfCommonStockFromRelatedParty"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_350FKH75322F_us-gaap_PaymentsForRepurchaseOfCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PaymentsForRepurchaseOfCommonStock" xml:lang="en-US"> Payments For Repurchase Of Common Stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_PaymentsForRepurchaseOfCommonStock" xml:lang="en-US"> Repurchases of Class B common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:to="lab_572HMJ97544H_us-gaap_PaymentsForRepurchaseOfCommonStock"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_InterestPaidNet" xml:lang="en-US"> Cash payments made for interest </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeTaxesPaid"/>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ReclassificationOfLiabilityForMemberInterestsInCsPharmaHoldingsLlc" xlink:label="loc_929216F4IJ579I98G136_idt_ReclassificationOfLiabilityForMemberInterestsInCsPharmaHoldingsLlc"/>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_NetAssetsExcludingCashAndCashEquivalentsOfSubsidiariesDeconsolidatedAsResultOfSpinOff" xlink:label="loc_350FKH75322F_idt_NetAssetsExcludingCashAndCashEquivalentsOfSubsidiariesDeconsolidatedAsResultOfSpinOff"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_NetAssetsExcludingCashAndCashEquivalentsOfSubsidiariesDeconsolidatedAsResultOfSpinOff" xml:lang="en-US"> Net assets excluding cash and cash equivalents of Zedge deconsolidated as a result of spin-off </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_NetAssetsExcludingCashAndCashEquivalentsOfSubsidiariesDeconsolidatedAsResultOfSpinOff" xml:lang="en-US"> Net assets excluding cash and cash equivalents of subsidiaries deconsolidated as result of Spin off. </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfStockConsiderationReceivedOnMemberInterest" xlink:label="loc_929216F4IJ579I98G136_idt_SaleOfStockConsiderationReceivedOnMemberInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfStockConsiderationReceivedOnMemberInterest" xml:lang="en-US"> Sale Of Stock Consideration Received On Member Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfStockConsiderationReceivedOnMemberInterest" xml:lang="en-US"> Shares of Visa Inc. Series C preferred stock received from sale of member interest in Visa Europe Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfStockConsiderationReceivedOnMemberInterest" xml:lang="en-US"> Sale of stock consideration received on member interest. </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_NetLiabilitiesExcludingCashAndCashEquivalentsOfSubsidiariesDeconsolidatedAsResultOfSale" xml:lang="en-US"> Net liabilities excluding cash and cash equivalents of Fabrix Systems Ltd. sold </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_NetLiabilitiesExcludingCashAndCashEquivalentsOfSubsidiariesDeconsolidatedAsResultOfSale" xml:lang="en-US"> Net liabilities excluding cash and cash equivalents of subsidiaries deconsolidated as result of sale. </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_350FKH75322F_us-gaap_AccountingPoliciesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccountingPoliciesAbstract" xml:lang="en-US"> Description of Business and Summary of Significant Accounting Policies [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccountingPoliciesAbstract" xml:lang="en-US"> Schedule of weighted-average number of shares used in the calculation of basic and diluted earnings per share [Abstract] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessDescriptionAndAccountingPoliciesTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_BusinessDescriptionAndAccountingPoliciesTextBlock"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfInvestmentsAbstract" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfInvestmentsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfInvestmentsAbstract" xml:lang="en-US"> Investment in Rafael Pharmaceuticals, Inc. [Abstract] </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IdtFinancialServicesHoldingLimitedAssetsAndLiabilitiesHeldForSaleAbstract" xlink:label="loc_350FKH75322F_idt_IdtFinancialServicesHoldingLimitedAssetsAndLiabilitiesHeldForSaleAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_IdtFinancialServicesHoldingLimitedAssetsAndLiabilitiesHeldForSaleAbstract" xml:lang="en-US"> IDT Financial Services Holding Limited Assets and Liabilities Held for Sale [Abstract] </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AssetsAndLiabilitiesHeldForSaleTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_AssetsAndLiabilitiesHeldForSaleTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AssetsAndLiabilitiesHeldForSaleTextBlock" xml:lang="en-US"> Assets And Liabilities Held For Sale [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_AssetsAndLiabilitiesHeldForSaleTextBlock" xml:lang="en-US"> IDT Financial Services Holding Limited Assets and Liabilities Held for Sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_AssetsAndLiabilitiesHeldForSaleTextBlock" xml:lang="en-US"> The entire disclosure for assets and liabilities held for sale. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_AssetsAndLiabilitiesHeldForSaleTextBlock" xlink:to="lab_141438H6KL791K10I358_idt_AssetsAndLiabilitiesHeldForSaleTextBlock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ZedgeSpinOffAbstract" xlink:label="loc_350FKH75322F_idt_ZedgeSpinOffAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ZedgeSpinOffAbstract" xml:lang="en-US"> Zedge Spin Off [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ZedgeSpinOffAbstract" xml:lang="en-US"> Zedge Spin-Off [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ZedgeSpinOffAbstract" xml:lang="en-US"> Disposition of subsidiary. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ZedgeSpinOffAbstract" xlink:to="lab_572HMJ97544H_idt_ZedgeSpinOffAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DispositionOfSubsidiaryTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_DispositionOfSubsidiaryTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DispositionOfSubsidiaryTextBlock" xml:lang="en-US"> Disposition Of Subsidiary [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DispositionOfSubsidiaryTextBlock" xml:lang="en-US"> Zedge Spin-Off </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_DispositionOfSubsidiaryTextBlock" xml:lang="en-US"> The entire disclosure of disposition of subsidiary. </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfInterestInFabrixSystemsLtdAbstract" xlink:label="loc_350FKH75322F_idt_SaleOfInterestInFabrixSystemsLtdAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_SaleOfInterestInFabrixSystemsLtdAbstract" xml:lang="en-US"> Sale Of Interest In Fabrix Systems Ltd [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_SaleOfInterestInFabrixSystemsLtdAbstract" xml:lang="en-US"> Sale of Interest in Fabrix Systems Ltd [Abstarct] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_SaleOfInterestInFabrixSystemsLtdAbstract" xlink:to="lab_572HMJ97544H_idt_SaleOfInterestInFabrixSystemsLtdAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfInterestInSubsidiaryOtherOperatingIncomeTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_SaleOfInterestInSubsidiaryOtherOperatingIncomeTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfInterestInSubsidiaryOtherOperatingIncomeTextBlock" xml:lang="en-US"> Sale Of Interest In Subsidiary Other Operating Income [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfInterestInSubsidiaryOtherOperatingIncomeTextBlock" xml:lang="en-US"> Sale of Interest in Fabrix Systems Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfInterestInSubsidiaryOtherOperatingIncomeTextBlock" xml:lang="en-US"> The entire disclosure of sale of interest in subsidiary other operating income. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_SaleOfInterestInSubsidiaryOtherOperatingIncomeTextBlock" xlink:to="lab_141438H6KL791K10I358_idt_SaleOfInterestInSubsidiaryOtherOperatingIncomeTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract" xlink:label="loc_350FKH75322F_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract" xml:lang="en-US"> Marketable Securities [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract" xml:lang="en-US"> Investments, Debt and Equity Securities [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract" xlink:to="lab_572HMJ97544H_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock" xml:lang="en-US"> Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock" xml:lang="en-US"> Marketable Securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_350FKH75322F_us-gaap_FairValueDisclosuresAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueDisclosuresAbstract" xml:lang="en-US"> Fair Value Measurements [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueDisclosuresAbstract" xml:lang="en-US"> Fair Value Disclosures [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FairValueDisclosuresAbstract" xlink:to="lab_572HMJ97544H_us-gaap_FairValueDisclosuresAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueDisclosuresTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueDisclosuresTextBlock" xml:lang="en-US"> Fair Value Disclosures [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueDisclosuresTextBlock" xml:lang="en-US"> Fair Value Measurements </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueDisclosuresTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueDisclosuresTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract" xlink:label="loc_350FKH75322F_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract" xml:lang="en-US"> Derivative Instruments [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract" xlink:to="lab_572HMJ97544H_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xml:lang="en-US"> Derivative Instruments and Hedging Activities Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xml:lang="en-US"> Derivative Instruments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_350FKH75322F_us-gaap_PropertyPlantAndEquipmentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentAbstract" xml:lang="en-US"> Property, Plant and Equipment [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentAbstract" xml:lang="en-US"> Property, Plant and Equipment [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PropertyPlantAndEquipmentAbstract" xlink:to="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US"> Property, Plant and Equipment Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US"> Property, Plant and Equipment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_350FKH75322F_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xml:lang="en-US"> Goodwill [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="lab_572HMJ97544H_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_GoodwillDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_GoodwillDisclosureTextBlock" xml:lang="en-US"> Goodwill Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_GoodwillDisclosureTextBlock" xml:lang="en-US"> Goodwill </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_GoodwillDisclosureTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_GoodwillDisclosureTextBlock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfMemberInterestInVisaEuropeLtdAbstract" xlink:label="loc_350FKH75322F_idt_SaleOfMemberInterestInVisaEuropeLtdAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_SaleOfMemberInterestInVisaEuropeLtdAbstract" xml:lang="en-US"> Sale of Member Interest in Visa Europe Ltd [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_SaleOfMemberInterestInVisaEuropeLtdAbstract" xml:lang="en-US"> Sale of Member Interest in Visa Europe Ltd. [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_SaleOfMemberInterestInVisaEuropeLtdAbstract" xlink:to="lab_572HMJ97544H_idt_SaleOfMemberInterestInVisaEuropeLtdAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfMemberInterestTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_SaleOfMemberInterestTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfMemberInterestTextBlock" xml:lang="en-US"> Sale Of Member Interest [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfMemberInterestTextBlock" xml:lang="en-US"> Sale of Member Interest in Visa Europe Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfMemberInterestTextBlock" xml:lang="en-US"> The entire disclosure for sale of member interest. </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_OtherOperatingLossesNetAbstract" xlink:label="loc_350FKH75322F_idt_OtherOperatingLossesNetAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_OtherOperatingLossesNetAbstract" xml:lang="en-US"> Other Operating Losses, Net [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_OtherOperatingLossesNetAbstract" xml:lang="en-US"> Other operating losses gains, net. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_idt_OtherOperatingLossesNetAbstract" xml:lang="en-US"> Other Operating (Losses) Gains, Net [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_OtherOperatingLossesNetAbstract" xlink:to="lab_572HMJ97544H_idt_OtherOperatingLossesNetAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherOperatingIncomeAndExpenseTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OtherOperatingIncomeAndExpenseTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherOperatingIncomeAndExpenseTextBlock" xml:lang="en-US"> Other Operating Income and Expense [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherOperatingIncomeAndExpenseTextBlock" xml:lang="en-US"> Other Operating Losses, Net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OtherOperatingIncomeAndExpenseTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_OtherOperatingIncomeAndExpenseTextBlock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RevolvingCreditLoanPayableAbstract" xlink:label="loc_350FKH75322F_idt_RevolvingCreditLoanPayableAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RevolvingCreditLoanPayableAbstract" xml:lang="en-US"> Revolving Credit Loan Payable [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RevolvingCreditLoanPayableAbstract" xlink:to="lab_572HMJ97544H_idt_RevolvingCreditLoanPayableAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShortTermDebtTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShortTermDebtTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShortTermDebtTextBlock" xml:lang="en-US"> Short Term Debt [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShortTermDebtTextBlock" xml:lang="en-US"> Revolving Credit Loan Payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShortTermDebtTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShortTermDebtTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="loc_350FKH75322F_us-gaap_PayablesAndAccrualsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PayablesAndAccrualsAbstract" xml:lang="en-US"> Accrued Expenses [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PayablesAndAccrualsAbstract" xlink:to="lab_572HMJ97544H_us-gaap_PayablesAndAccrualsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" xml:lang="en-US"> Accounts Payable and Accrued Liabilities Disclosure [Text Block] </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SeveranceExpenseAbstract" xlink:label="loc_350FKH75322F_idt_SeveranceExpenseAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_SeveranceExpenseAbstract" xml:lang="en-US"> Severance Expense [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_SeveranceExpenseAbstract" xml:lang="en-US"> Accrued Severance Expense [Abstract] </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SeveranceExpenseTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_SeveranceExpenseTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SeveranceExpenseTextBlock" xml:lang="en-US"> Severance Expense [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SeveranceExpenseTextBlock" xml:lang="en-US"> Severance Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SeveranceExpenseTextBlock" xml:lang="en-US"> The entire disclosure of amount spent on severance pay for employees who had their contracts terminated. </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract" xlink:label="loc_350FKH75322F_us-gaap_OtherIncomeAndExpensesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OtherIncomeAndExpensesAbstract" xml:lang="en-US"> Other Income (Expense), Net [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherIncomeAndExpensesAbstract" xml:lang="en-US"> Other Operating (Losses) Gains, Net [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_572HMJ97544H_us-gaap_OtherIncomeAndExpensesAbstract" xml:lang="en-US"> Other Income (Expense), Net [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OtherIncomeAndExpensesAbstract" xlink:to="lab_572HMJ97544H_us-gaap_OtherIncomeAndExpensesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock" xml:lang="en-US"> Other Income and Other Expense Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock" xml:lang="en-US"> Other (Expense) Income, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/presentationGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock" xml:lang="en-US"> Other Income (Expense), Net </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_350FKH75322F_us-gaap_IncomeTaxDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeTaxDisclosureAbstract" xml:lang="en-US"> Income Taxes [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncomeTaxDisclosureAbstract" xlink:to="lab_572HMJ97544H_us-gaap_IncomeTaxDisclosureAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeTaxDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxDisclosureTextBlock" xml:lang="en-US"> Income Tax Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxDisclosureTextBlock" xml:lang="en-US"> Income Taxes </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_350FKH75322F_us-gaap_EquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_EquityAbstract" xml:lang="en-US"> Equity [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_EquityAbstract" xml:lang="en-US"> Equity [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_EquityAbstract" xlink:to="lab_572HMJ97544H_us-gaap_EquityAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StockholdersEquityNoteDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xml:lang="en-US"> Stockholders Equity Note Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xml:lang="en-US"> Equity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_StockholdersEquityNoteDisclosureTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_350FKH75322F_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xml:lang="en-US"> Stock-Based Compensation [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="lab_572HMJ97544H_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xml:lang="en-US"> Disclosure of Compensation Related Costs, Share-based Payments [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xml:lang="en-US"> Stock-Based Compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract" xlink:label="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract" xlink:to="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ComprehensiveIncomeNoteTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNoteTextBlock" xml:lang="en-US"> Comprehensive Income (Loss) Note [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNoteTextBlock" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ComprehensiveIncomeNoteTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_350FKH75322F_us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xml:lang="en-US"> Commitments and Contingencies [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xml:lang="en-US"> Commitments and Contingencies Disclosure [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="lab_572HMJ97544H_us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LegalMattersAndContingenciesTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LegalMattersAndContingenciesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LegalMattersAndContingenciesTextBlock" xml:lang="en-US"> Legal Matters and Contingencies [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LegalMattersAndContingenciesTextBlock" xml:lang="en-US"> Commitments and Contingencies </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsAbstract" xlink:label="loc_350FKH75322F_us-gaap_RelatedPartyTransactionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RelatedPartyTransactionsAbstract" xml:lang="en-US"> Related Party Transactions [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RelatedPartyTransactionsAbstract" xlink:to="lab_572HMJ97544H_us-gaap_RelatedPartyTransactionsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xml:lang="en-US"> Related Party Transactions Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xml:lang="en-US"> Related Party Transactions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_350FKH75322F_us-gaap_CompensationAndRetirementDisclosureAbstract"/>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:to="lab_572HMJ97544H_us-gaap_CompensationAndRetirementDisclosureAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndEmployeeBenefitPlansOtherThanShareBasedCompensationTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CompensationAndEmployeeBenefitPlansOtherThanShareBasedCompensationTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CompensationAndEmployeeBenefitPlansOtherThanShareBasedCompensationTextBlock" xml:lang="en-US"> Compensation and Employee Benefit Plans, Other than Share-based Compensation [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CompensationAndEmployeeBenefitPlansOtherThanShareBasedCompensationTextBlock" xml:lang="en-US"> Defined Contribution Plans </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingAbstract" xlink:label="loc_350FKH75322F_us-gaap_SegmentReportingAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SegmentReportingAbstract" xml:lang="en-US"> Business Segment Information [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SegmentReportingAbstract" xml:lang="en-US"> Segment Reporting [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SegmentReportingAbstract" xlink:to="lab_572HMJ97544H_us-gaap_SegmentReportingAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SegmentReportingDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SegmentReportingDisclosureTextBlock" xml:lang="en-US"> Segment Reporting Disclosure [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SegmentReportingDisclosureTextBlock" xml:lang="en-US"> Business Segment Information </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_350FKH75322F_us-gaap_QuarterlyFinancialInformationDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xml:lang="en-US"> Selected Quarterly Financial Data (Unaudited) [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_QuarterlyFinancialInformationTextBlock" xml:lang="en-US"> Selected Quarterly Financial Data (Unaudited) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_QuarterlyFinancialInformationTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_QuarterlyFinancialInformationTextBlock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DescriptionOfBusinessPolicyTextBlock" xlink:label="loc_350FKH75322F_idt_DescriptionOfBusinessPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DescriptionOfBusinessPolicyTextBlock" xml:lang="en-US"> Description Of Business [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_DescriptionOfBusinessPolicyTextBlock" xml:lang="en-US"> Description of Business </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DescriptionOfBusinessPolicyTextBlock" xml:lang="en-US"> Disclosure of accounting policy regarding description of business. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DescriptionOfBusinessPolicyTextBlock" xlink:to="lab_572HMJ97544H_idt_DescriptionOfBusinessPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ConsolidationPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConsolidationPolicyTextBlock" xml:lang="en-US"> Consolidation, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConsolidationPolicyTextBlock" xml:lang="en-US"> Basis of Consolidation and Accounting for Investments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ConsolidationPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ConsolidationPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_350FKH75322F_us-gaap_UseOfEstimates"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_UseOfEstimates" xml:lang="en-US"> Use of Estimates, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_UseOfEstimates" xml:lang="en-US"> Use of Estimates </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_UseOfEstimates" xlink:to="lab_572HMJ97544H_us-gaap_UseOfEstimates"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RevenueRecognitionPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RevenueRecognitionPolicyTextBlock" xml:lang="en-US"> Revenue Recognition, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_RevenueRecognitionPolicyTextBlock" xml:lang="en-US"> Revenue Recognition </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RevenueRecognitionPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_RevenueRecognitionPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfSalesPolicyTextBlock" xlink:label="loc_350FKH75322F_us-gaap_CostOfSalesPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CostOfSalesPolicyTextBlock" xml:lang="en-US"> Cost of Sales, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CostOfSalesPolicyTextBlock" xml:lang="en-US"> Direct Cost of Revenues </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CostOfSalesPolicyTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_CostOfSalesPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CashAndCashEquivalentsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US"> Cash and Cash Equivalents, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US"> Cash and Cash Equivalents </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_CashAndCashEquivalentsPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="loc_350FKH75322F_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xml:lang="en-US"> Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xml:lang="en-US"> Restricted Cash and Cash Equivalents </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:to="lab_572HMJ97544H_us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SubstantiallyRestrictedCashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_SubstantiallyRestrictedCashAndCashEquivalentsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SubstantiallyRestrictedCashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US"> Substantially Restricted Cash And Cash Equivalents [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SubstantiallyRestrictedCashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US"> Substantially Restricted Cash and Cash Equivalents </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SubstantiallyRestrictedCashAndCashEquivalentsPolicyTextBlock" xml:lang="en-US"> Disclosure of accounting policy for substantially restricted cash and cash equivalents. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_SubstantiallyRestrictedCashAndCashEquivalentsPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_idt_SubstantiallyRestrictedCashAndCashEquivalentsPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecuritiesPolicy" xlink:label="loc_350FKH75322F_us-gaap_MarketableSecuritiesPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesPolicy" xml:lang="en-US"> Marketable Securities, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_MarketableSecuritiesPolicy" xml:lang="en-US"> Marketable Securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_MarketableSecuritiesPolicy" xlink:to="lab_572HMJ97544H_us-gaap_MarketableSecuritiesPolicy"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LongLivedAssetsPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_LongLivedAssetsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_LongLivedAssetsPolicyTextBlock" xml:lang="en-US"> Long Lived Assets [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_LongLivedAssetsPolicyTextBlock" xml:lang="en-US"> Long-Lived Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_LongLivedAssetsPolicyTextBlock" xml:lang="en-US"> Disclosure of accounting policy for long lived assets. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_LongLivedAssetsPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_idt_LongLivedAssetsPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:label="loc_350FKH75322F_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xml:lang="en-US"> Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xml:lang="en-US"> Goodwill </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:to="lab_572HMJ97544H_us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DerivativesPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DerivativesPolicyTextBlock" xml:lang="en-US"> Derivatives, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DerivativesPolicyTextBlock" xml:lang="en-US"> Derivative Instruments and Hedging Activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DerivativesPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_DerivativesPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingCostsPolicyTextBlock" xlink:label="loc_350FKH75322F_us-gaap_AdvertisingCostsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AdvertisingCostsPolicyTextBlock" xml:lang="en-US"> Advertising Costs, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AdvertisingCostsPolicyTextBlock" xml:lang="en-US"> Advertising Expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AdvertisingCostsPolicyTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_AdvertisingCostsPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ResearchAndDevelopmentExpensePolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ResearchAndDevelopmentExpensePolicy" xml:lang="en-US"> Research and Development Expense, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ResearchAndDevelopmentExpensePolicy" xml:lang="en-US"> Research and Development Costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:to="lab_141438H6KL791K10I358_us-gaap_ResearchAndDevelopmentExpensePolicy"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InternalUseSoftwarePolicy" xlink:label="loc_350FKH75322F_us-gaap_InternalUseSoftwarePolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_InternalUseSoftwarePolicy" xml:lang="en-US"> Internal Use Software, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_InternalUseSoftwarePolicy" xml:lang="en-US"> Capitalized Internal Use Software Costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_InternalUseSoftwarePolicy" xlink:to="lab_572HMJ97544H_us-gaap_InternalUseSoftwarePolicy"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaintenanceCostPolicyPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_MaintenanceCostPolicyPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_MaintenanceCostPolicyPolicyTextBlock" xml:lang="en-US"> Maintenance Cost, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_MaintenanceCostPolicyPolicyTextBlock" xml:lang="en-US"> Repairs and Maintenance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_MaintenanceCostPolicyPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_MaintenanceCostPolicyPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xml:lang="en-US"> Foreign Currency Transactions and Translations Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xml:lang="en-US"> Foreign Currency Translation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeTaxPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxPolicyTextBlock" xml:lang="en-US"> Income Tax, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxPolicyTextBlock" xml:lang="en-US"> Income Taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncomeTaxPolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncomeTaxPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:label="loc_350FKH75322F_us-gaap_CommitmentsAndContingenciesPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xml:lang="en-US"> Commitments and Contingencies, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xml:lang="en-US"> Contingencies </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CommitmentsAndContingenciesPolicyTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_CommitmentsAndContingenciesPolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EarningsPerSharePolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EarningsPerSharePolicyTextBlock" xml:lang="en-US"> Earnings Per Share, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EarningsPerSharePolicyTextBlock" xml:lang="en-US"> Earnings Per Share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_EarningsPerSharePolicyTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xml:lang="en-US"> Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xml:lang="en-US"> Stock-Based Compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ConcentrationRiskCreditRisk"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConcentrationRiskCreditRisk" xml:lang="en-US"> Concentration Risk, Credit Risk, Policy [Policy Text Block] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xlink:label="loc_350FKH75322F_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xml:lang="en-US"> Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy" xml:lang="en-US"> Allowance for Doubtful Accounts </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueMeasurementPolicyPolicyTextBlock"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xml:lang="en-US"> Fair Value Measurements </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdopted" xlink:label="loc_350FKH75322F_us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdopted"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdopted" xml:lang="en-US"> Description of New Accounting Pronouncements Not yet Adopted [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdopted" xml:lang="en-US"> Recently Issued Accounting Standards Not Yet Adopted </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdopted" xml:lang="en-US"> Recently Issued Accounting Standard Not Yet Adopted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdopted" xlink:to="lab_572HMJ97544H_us-gaap_DescriptionOfNewAccountingPronouncementsNotYetAdopted"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" xml:lang="en-US"> Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" xml:lang="en-US"> Schedule of weighted-average number of shares used in the calculation of basic and diluted earnings per share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" xml:lang="en-US"> Summary of weighted-average number of shares used in the calculation of basic and diluted earnings per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xml:lang="en-US"> Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xml:lang="en-US"> Summary of shares excluded from the diluted earnings per share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xml:lang="en-US"> Summary of outstanding stock options excluded from the calculation of diluted earnings per share </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfChangesInAllowanceForDoubtfulAccountsTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_ScheduleOfChangesInAllowanceForDoubtfulAccountsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfChangesInAllowanceForDoubtfulAccountsTableTextBlock" xml:lang="en-US"> Schedule Of Changes In Allowance For Doubtful Accounts [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfChangesInAllowanceForDoubtfulAccountsTableTextBlock" xml:lang="en-US"> Schedule of change in the allowance for doubtful accounts </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfChangesInAllowanceForDoubtfulAccountsTableTextBlock" xml:lang="en-US"> Schedule of changes in allowance for doubtful accounts. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ScheduleOfChangesInAllowanceForDoubtfulAccountsTableTextBlock" xlink:to="lab_141438H6KL791K10I358_idt_ScheduleOfChangesInAllowanceForDoubtfulAccountsTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xml:lang="en-US"> Investment Holdings, Schedule of Investments [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xml:lang="en-US"> Schedule of consolidated balance sheets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_InvestmentHoldingsScheduleOfInvestmentsTableTextBlock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTable" xlink:label="loc_929216F4IJ579I98G136_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTable" xml:lang="en-US"> Schedule of Assets and Liabilities Held for Sale [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTable" xml:lang="en-US"> Disclosur of information about assets and liabilities held for sale. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTable" xlink:to="lab_141438H6KL791K10I358_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_350FKH75322F_dei_LegalEntityAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_dei_LegalEntityAxis" xml:lang="en-US"> Legal Entity [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_dei_LegalEntityAxis" xlink:to="lab_572HMJ97544H_dei_LegalEntityAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_929216F4IJ579I98G136_dei_EntityDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_dei_EntityDomain" xml:lang="en-US"> Entity [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_dei_EntityDomain" xlink:to="lab_141438H6KL791K10I358_dei_EntityDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IdtFinancialServicesHoldingLimitedMember" xlink:label="loc_350FKH75322F_idt_IdtFinancialServicesHoldingLimitedMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_IdtFinancialServicesHoldingLimitedMember" xml:lang="en-US"> Idt Financial Services Holding Limited [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_IdtFinancialServicesHoldingLimitedMember" xml:lang="en-US"> IDT Financial Services Holding Limited [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_IdtFinancialServicesHoldingLimitedMember" xlink:to="lab_572HMJ97544H_idt_IdtFinancialServicesHoldingLimitedMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AssetsAndHeldForSaleLineItems" xlink:label="loc_929216F4IJ579I98G136_idt_AssetsAndHeldForSaleLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AssetsAndHeldForSaleLineItems" xml:lang="en-US"> Assets and Held for Sale [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_AssetsAndHeldForSaleLineItems" xml:lang="en-US"> Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_AssetsAndHeldForSaleLineItems" xlink:to="lab_141438H6KL791K10I358_idt_AssetsAndHeldForSaleLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AssetsAndLiabilitiesHeldForSaleAbstract" xlink:label="loc_350FKH75322F_idt_AssetsAndLiabilitiesHeldForSaleAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_AssetsAndLiabilitiesHeldForSaleAbstract" xml:lang="en-US"> Assets And Liabilities Held For Sale [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_AssetsAndLiabilitiesHeldForSaleAbstract" xml:lang="en-US"> Assets and Liabilities Held for Sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_AssetsAndLiabilitiesHeldForSaleAbstract" xlink:to="lab_572HMJ97544H_idt_AssetsAndLiabilitiesHeldForSaleAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTableTextBlock" xml:lang="en-US"> Schedule Of Assets And Liabilities Held For Sale [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTableTextBlock" xml:lang="en-US"> Schedule of assets and liabilities held for sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTableTextBlock" xml:lang="en-US"> Tablular disclosure of assets and liabilities. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTableTextBlock" xlink:to="lab_141438H6KL791K10I358_idt_ScheduleOfAssetsAndLiabilitiesHeldForSaleTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xml:lang="en-US"> Condensed Income Statement [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xml:lang="en-US"> Schedule of consolidated statements of operations </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xml:lang="en-US"> Schedule of consolidated statements of income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StatementBusinessSegmentsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StatementBusinessSegmentsAxis" xml:lang="en-US"> Segments [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StatementBusinessSegmentsAxis" xml:lang="en-US"> Segments [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StatementBusinessSegmentsAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_StatementBusinessSegmentsAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_350FKH75322F_us-gaap_SegmentDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SegmentDomain" xml:lang="en-US"> Segments [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SegmentDomain" xml:lang="en-US"> Segments [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SegmentDomain" xlink:to="lab_572HMJ97544H_us-gaap_SegmentDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ZedgeSpinOffMember" xlink:label="loc_929216F4IJ579I98G136_idt_ZedgeSpinOffMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ZedgeSpinOffMember" xml:lang="en-US"> Zedge Spin Off [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ZedgeSpinOffMember" xml:lang="en-US"> Zedge Spin-Off [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ZedgeSpinOffMember" xlink:to="lab_141438H6KL791K10I358_idt_ZedgeSpinOffMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_FabrixMember" xlink:label="loc_350FKH75322F_idt_FabrixMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_FabrixMember" xml:lang="en-US"> Fabrix [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_FabrixMember" xml:lang="en-US"> Fabrix Subsidiary [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_FabrixMember" xlink:to="lab_572HMJ97544H_idt_FabrixMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecuritiesTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_MarketableSecuritiesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_MarketableSecuritiesTextBlock" xml:lang="en-US"> Marketable Securities [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_MarketableSecuritiesTextBlock" xml:lang="en-US"> Summary of marketable securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_MarketableSecuritiesTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_MarketableSecuritiesTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesTextBlock" xlink:label="loc_350FKH75322F_us-gaap_AvailableForSaleSecuritiesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesTextBlock" xml:lang="en-US"> Available For Sale Securities [Text Block] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xml:lang="en-US"> Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xml:lang="en-US"> Summary of available-for-sale securities, unrealized loss position </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xml:lang="en-US"> Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xml:lang="en-US"> Summary of balance of assets measured at fair value on a recurring basis </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xml:lang="en-US"> Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xml:lang="en-US"> Summary of assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US"> Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US"> Schedule of derivative instruments on the consolidated statements of income </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xml:lang="en-US"> Schedule of derivative instruments on the consolidated statements of income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfDerivativesInstrumentsStatementsOfFinancialPerformanceAndFinancialPositionLocationTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US"> Property, Plant and Equipment [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentTextBlock" xml:lang="en-US"> Schedule of property, plant and equipment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xml:lang="en-US"> Schedule of Intangible Assets and Goodwill [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xml:lang="en-US"> Schedule of change in carrying amount of goodwill by operating segment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfOtherOperatingGainsLossNetTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_idt_ScheduleOfOtherOperatingGainsLossNetTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfOtherOperatingGainsLossNetTableTextBlock" xml:lang="en-US"> Schedule Of Other Operating Gains Loss Net [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfOtherOperatingGainsLossNetTableTextBlock" xml:lang="en-US"> Summary of other operating losses, net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfOtherOperatingGainsLossNetTableTextBlock" xml:lang="en-US"> Tabular disclosure of schedule of other operating gains loss net. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ScheduleOfOtherOperatingGainsLossNetTableTextBlock" xlink:to="lab_141438H6KL791K10I358_idt_ScheduleOfOtherOperatingGainsLossNetTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xml:lang="en-US"> Schedule of Accrued Liabilities [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xml:lang="en-US"> Summary of accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xml:lang="en-US"> Schedule of Other Nonoperating Income (Expense) [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xml:lang="en-US"> Schedule of other income (expense), net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xml:lang="en-US"> Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xml:lang="en-US"> Components of (loss) income before income taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xml:lang="en-US"> Schedule of Deferred Tax Assets and Liabilities [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xml:lang="en-US"> Schedule of deferred income tax assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xml:lang="en-US"> Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xml:lang="en-US"> Schedule of benefit from (provision for) income taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xml:lang="en-US"> Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xml:lang="en-US"> Schedule of U.S. federal statutory income tax rate and income taxes provided </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SummaryOfValuationAllowanceTextBlock" xlink:label="loc_350FKH75322F_us-gaap_SummaryOfValuationAllowanceTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SummaryOfValuationAllowanceTextBlock" xml:lang="en-US"> Summary of Valuation Allowance [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SummaryOfValuationAllowanceTextBlock" xml:lang="en-US"> Schedule of change in the valuation allowance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SummaryOfValuationAllowanceTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_SummaryOfValuationAllowanceTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xml:lang="en-US"> Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xml:lang="en-US"> Schedule of risk free rate based on U.S. Treasury yield curve effect at time of grant </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xml:lang="en-US"> Schedule of Share-based Compensation, Activity [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xml:lang="en-US"> Summary of stock option activity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xml:lang="en-US"> Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xml:lang="en-US"> Summary of grants of restricted shares of class B common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xml:lang="en-US"> Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xml:lang="en-US"> Schedule of accumulated balances for each classification of other comprehensive income (loss) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xml:lang="en-US"> Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesOfLessorDisclosureTextBlock" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesOfLessorDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesOfLessorDisclosureTextBlock" xml:lang="en-US"> Lessor, Operating Leases [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesOfLessorDisclosureTextBlock" xml:lang="en-US"> Schedule of minimum future rentals on noncancelable operating leases </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesOfLessorDisclosureTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesOfLessorDisclosureTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock" xml:lang="en-US"> Schedule of Property Subject to or Available for Operating Lease [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock" xml:lang="en-US"> Schedule of aggregate carrying value of land building and improvements </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfPropertySubjectToOrAvailableForOperatingLeaseTextBlock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfChangesInCompanysEstimatedLiabilityTableTextBlock" xlink:label="loc_350FKH75322F_idt_ScheduleOfChangesInCompanysEstimatedLiabilityTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ScheduleOfChangesInCompanysEstimatedLiabilityTableTextBlock" xml:lang="en-US"> Schedule Of Changes In Companys Estimated Liability [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ScheduleOfChangesInCompanysEstimatedLiabilityTableTextBlock" xml:lang="en-US"> Summary of changes in estimated liability to straight path included in other current liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ScheduleOfChangesInCompanysEstimatedLiabilityTableTextBlock" xml:lang="en-US"> Tabular disclosure of changes in company's estimated liability. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ScheduleOfChangesInCompanysEstimatedLiabilityTableTextBlock" xlink:to="lab_572HMJ97544H_idt_ScheduleOfChangesInCompanysEstimatedLiabilityTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xml:lang="en-US"> Schedule Of Segment Reporting Information By Segment [Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xml:lang="en-US"> Summary of operating results of business segments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xml:lang="en-US"> Revenue from External Customers by Products and Services [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xml:lang="en-US"> Schedule of revenue from external customers </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xml:lang="en-US"> Revenue from External Customers by Geographic Areas [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xml:lang="en-US"> Schedule of revenue from external customers by geographic areas </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_RevenueFromExternalCustomersByGeographicAreasTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xlink:label="loc_350FKH75322F_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xml:lang="en-US"> Long-lived Assets by Geographic Areas [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xml:lang="en-US"> Schedule of long-lived assets and total assets by geographic areas </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock" xlink:to="lab_572HMJ97544H_us-gaap_LongLivedAssetsByGeographicAreasTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xml:lang="en-US"> Quarterly Financial Information [Table Text Block] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xml:lang="en-US"> Schedule of selected quarterly financial data </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:label="loc_350FKH75322F_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xml:lang="en-US"> Weighted Average Number of Shares Outstanding Reconciliation [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xml:lang="en-US"> Weighted-average number of shares used in the calculation of basic and diluted earnings per share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xml:lang="en-US"> Summary of Weighted-Average Number of Shares used in Calculation of Basic and Diluted Earnings Per Share [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:to="lab_572HMJ97544H_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract" xml:lang="en-US"> Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract" xml:lang="en-US"> Effect of dilutive securities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustmentAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="loc_350FKH75322F_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xml:lang="en-US"> Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xml:lang="en-US"> Stock options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:to="lab_572HMJ97544H_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends" xml:lang="en-US"> Incremental Common Shares Attributable to Dilutive Effect of Nonvested Shares with Forfeitable Dividends </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends" xml:lang="en-US"> Non-vested restricted Class B common stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncrementalCommonSharesAttributableToNonvestedSharesWithForfeitableDividends" xml:lang="en-US"> Non-vested restricted Class B common stock </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract" xlink:label="loc_350FKH75322F_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract" xml:lang="en-US"> Earnings Per Share, Diluted, Other Disclosures [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract" xml:lang="en-US"> Stock options excluded from the diluted earnings per share computations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract" xlink:to="lab_572HMJ97544H_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xml:lang="en-US"> Shares excluded from the calculation of diluted earnings per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="lab_141438H6KL791K10I358_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ReservesDeductedFromAccountsReceivableAbstract" xlink:label="loc_350FKH75322F_idt_ReservesDeductedFromAccountsReceivableAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ReservesDeductedFromAccountsReceivableAbstract" xml:lang="en-US"> Reserves Deducted From Accounts Receivable [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ReservesDeductedFromAccountsReceivableAbstract" xml:lang="en-US"> Reserves deducted from accounts receivable: </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ReservesDeductedFromAccountsReceivableAbstract" xml:lang="en-US"> Reserves deducted from accounts receivable. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ReservesDeductedFromAccountsReceivableAbstract" xlink:to="lab_572HMJ97544H_idt_ReservesDeductedFromAccountsReceivableAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale" xlink:label="loc_929216F4IJ579I98G136_idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale" xml:lang="en-US"> Allowance For Doubtful Accounts Receivable Current Unadjusted For Held For Sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_141438H6KL791K10I358_idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale" xml:lang="en-US"> Allowance for doubtful accounts, Balance at beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_141438H6KL791K10I358_idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale" xml:lang="en-US"> Allowance for doubtful accounts, Balance at end of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale" xml:lang="en-US"> Allowance for doubtful accounts receivable current unadjusted for held for sale. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale" xlink:to="lab_141438H6KL791K10I358_idt_AllowanceForDoubtfulAccountsReceivableCurrentUnadjustedForHeldForSale"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xlink:label="loc_350FKH75322F_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xml:lang="en-US"> Allowance for Doubtful Accounts Receivable, Write-offs </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xml:lang="en-US"> Allowance for doubtful accounts, Deductions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xml:lang="en-US"> Allowance for doubtful accounts, Deductions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xlink:to="lab_572HMJ97544H_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfInvestmentsTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfInvestmentsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfInvestmentsTable" xml:lang="en-US"> Schedule of Investments [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfInvestmentsTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfInvestmentsTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_350FKH75322F_us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xml:lang="en-US"> Property, Plant and Equipment, Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="lab_572HMJ97544H_us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentTypeDomain" xml:lang="en-US"> Property, Plant and Equipment, Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquipmentMember" xlink:label="loc_350FKH75322F_us-gaap_EquipmentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_EquipmentMember" xml:lang="en-US"> Equipment [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_EquipmentMember" xml:lang="en-US"> Equipment [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_EquipmentMember" xlink:to="lab_572HMJ97544H_us-gaap_EquipmentMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_BuildingMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_BuildingMember" xml:lang="en-US"> Building [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_BuildingMember" xml:lang="en-US"> Buildings [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_BuildingMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_BuildingMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ComputerSoftwareMember" xlink:label="loc_350FKH75322F_idt_ComputerSoftwareMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ComputerSoftwareMember" xml:lang="en-US"> Computer Software [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ComputerSoftwareMember" xml:lang="en-US"> Computer Software [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ComputerSoftwareMember" xml:lang="en-US"> Computer Software. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ComputerSoftwareMember" xlink:to="lab_572HMJ97544H_idt_ComputerSoftwareMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FurnitureAndFixturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FurnitureAndFixturesMember" xml:lang="en-US"> Furniture and Fixtures [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FurnitureAndFixturesMember" xml:lang="en-US"> Furniture and fixtures [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FurnitureAndFixturesMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_FurnitureAndFixturesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_350FKH75322F_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xml:lang="en-US"> Software and Software Development Costs [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xml:lang="en-US"> Internal-use Software [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:to="lab_572HMJ97544H_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LongLivedAssetsMember" xlink:label="loc_929216F4IJ579I98G136_idt_LongLivedAssetsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_LongLivedAssetsMember" xml:lang="en-US"> Long Lived Assets [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_LongLivedAssetsMember" xlink:to="lab_141438H6KL791K10I358_idt_LongLivedAssetsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xml:lang="en-US"> Finite-Lived Intangible Assets by Major Class [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xml:lang="en-US"> Finite-Lived Intangible Assets, Major Class Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_TechnologyAndDomainNamesMember" xlink:label="loc_350FKH75322F_idt_TechnologyAndDomainNamesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_TechnologyAndDomainNamesMember" xml:lang="en-US"> Technology And Domain Names [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_TechnologyAndDomainNamesMember" xml:lang="en-US"> Technology and domain names [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_TechnologyAndDomainNamesMember" xml:lang="en-US"> Technology and domain names. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_TechnologyAndDomainNamesMember" xlink:to="lab_572HMJ97544H_idt_TechnologyAndDomainNamesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CustomerListsMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CustomerListsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CustomerListsMember" xml:lang="en-US"> Customer Lists [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CustomerListsMember" xml:lang="en-US"> Customer Lists [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CustomerListsMember" xml:lang="en-US"> Customer lists [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CustomerListsMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_CustomerListsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TrademarksMember" xlink:label="loc_350FKH75322F_us-gaap_TrademarksMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_TrademarksMember" xml:lang="en-US"> Trademarks [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_TrademarksMember" xml:lang="en-US"> Trademark [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_TrademarksMember" xlink:to="lab_572HMJ97544H_us-gaap_TrademarksMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ConcentrationRiskByBenchmarkAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConcentrationRiskByBenchmarkAxis" xml:lang="en-US"> Concentration Risk Benchmark [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_ConcentrationRiskByBenchmarkAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_350FKH75322F_us-gaap_ConcentrationRiskBenchmarkDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ConcentrationRiskBenchmarkDomain" xml:lang="en-US"> Concentration Risk Benchmark [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ConcentrationRiskBenchmarkDomain" xlink:to="lab_572HMJ97544H_us-gaap_ConcentrationRiskBenchmarkDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SalesRevenueNetMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SalesRevenueNetMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SalesRevenueNetMember" xml:lang="en-US"> Sales Revenue, Net [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SalesRevenueNetMember" xml:lang="en-US"> Revenues [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SalesRevenueNetMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_SalesRevenueNetMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableMember" xlink:label="loc_350FKH75322F_us-gaap_AccountsReceivableMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccountsReceivableMember" xml:lang="en-US"> Accounts Receivable [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccountsReceivableMember" xml:lang="en-US"> Receivables [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccountsReceivableMember" xlink:to="lab_572HMJ97544H_us-gaap_AccountsReceivableMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RangeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RangeAxis" xml:lang="en-US"> Range [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RangeAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_RangeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_350FKH75322F_us-gaap_RangeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RangeMember" xml:lang="en-US"> Range [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RangeMember" xlink:to="lab_572HMJ97544H_us-gaap_RangeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_MinimumMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_MinimumMember" xml:lang="en-US"> Minimum [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_MinimumMember" xml:lang="en-US"> Minimum [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_MinimumMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_MinimumMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_350FKH75322F_us-gaap_MaximumMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_MaximumMember" xml:lang="en-US"> Maximum [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_MaximumMember" xml:lang="en-US"> Maximum [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_MaximumMember" xlink:to="lab_572HMJ97544H_us-gaap_MaximumMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IdtRafaelHoldingsLlcMember" xlink:label="loc_929216F4IJ579I98G136_idt_IdtRafaelHoldingsLlcMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_IdtRafaelHoldingsLlcMember" xml:lang="en-US"> Idt-Rafael Holdings Llc [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_IdtRafaelHoldingsLlcMember" xml:lang="en-US"> IDT-Rafael Holdings, LLC [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_IdtRafaelHoldingsLlcMember" xlink:to="lab_141438H6KL791K10I358_idt_IdtRafaelHoldingsLlcMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentHoldingsLineItems" xlink:label="loc_350FKH75322F_us-gaap_InvestmentHoldingsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_InvestmentHoldingsLineItems" xml:lang="en-US"> Investment Holdings [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_InvestmentHoldingsLineItems" xlink:to="lab_572HMJ97544H_us-gaap_InvestmentHoldingsLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DescriptionOfBusinessAndSignificantAccountingPoliciesTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_DescriptionOfBusinessAndSignificantAccountingPoliciesTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DescriptionOfBusinessAndSignificantAccountingPoliciesTextualAbstract" xml:lang="en-US"> Description Of Business And Significant Accounting Policies Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DescriptionOfBusinessAndSignificantAccountingPoliciesTextualAbstract" xml:lang="en-US"> Description of Business and Summary of Significant Accounting Policies (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DescriptionOfBusinessAndSignificantAccountingPoliciesTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_DescriptionOfBusinessAndSignificantAccountingPoliciesTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_350FKH75322F_us-gaap_NumberOfReportableSegments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_NumberOfReportableSegments" xml:lang="en-US"> Number of Reportable Segments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_NumberOfReportableSegments" xml:lang="en-US"> Number of reportable segments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_NumberOfReportableSegments" xlink:to="lab_572HMJ97544H_us-gaap_NumberOfReportableSegments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EquityMethodInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EquityMethodInvestments" xml:lang="en-US"> Equity Method Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EquityMethodInvestments" xml:lang="en-US"> Investments accounted for using the equity method </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EquityMethodInvestments" xlink:to="lab_141438H6KL791K10I358_us-gaap_EquityMethodInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostMethodInvestments" xlink:label="loc_350FKH75322F_us-gaap_CostMethodInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CostMethodInvestments" xml:lang="en-US"> Cost Method Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CostMethodInvestments" xml:lang="en-US"> Investments accounted for using the cost method </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CostMethodInvestments" xlink:to="lab_572HMJ97544H_us-gaap_CostMethodInvestments"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PercentageOfAdvertisingRevenueDescription" xlink:label="loc_929216F4IJ579I98G136_idt_PercentageOfAdvertisingRevenueDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfAdvertisingRevenueDescription" xml:lang="en-US"> Percentage Of Advertising Revenue Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfAdvertisingRevenueDescription" xml:lang="en-US"> Percentage of advertising revenue, description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfAdvertisingRevenueDescription" xml:lang="en-US"> Percentage of advertising revenues, description. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_PercentageOfAdvertisingRevenueDescription" xlink:to="lab_141438H6KL791K10I358_idt_PercentageOfAdvertisingRevenueDescription"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_CashAndCashEquivalentsSubstantiallyRestricted" xlink:label="loc_350FKH75322F_idt_CashAndCashEquivalentsSubstantiallyRestricted"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_CashAndCashEquivalentsSubstantiallyRestricted" xml:lang="en-US"> Cash And Cash Equivalents Substantially Restricted </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_CashAndCashEquivalentsSubstantiallyRestricted" xml:lang="en-US"> Restricted cash and cash equivalents </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_CashAndCashEquivalentsSubstantiallyRestricted" xml:lang="en-US"> Cash and cash equivalents substantially restricted. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_CashAndCashEquivalentsSubstantiallyRestricted" xlink:to="lab_572HMJ97544H_idt_CashAndCashEquivalentsSubstantiallyRestricted"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentUsefulLife" xml:lang="en-US"> Property, Plant and Equipment, Useful Life </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentUsefulLife" xml:lang="en-US"> Estimated useful lives of long-lived assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xlink:label="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xml:lang="en-US"> Finite-Lived Intangible Assets, Remaining Amortization Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xml:lang="en-US"> Amortization period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1" xlink:to="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsRemainingAmortizationPeriod1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xml:lang="en-US"> Property, Plant and Equipment, Estimated Useful Lives </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xml:lang="en-US"> Estimated useful lives of internal-use software </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingExpense" xlink:label="loc_350FKH75322F_us-gaap_AdvertisingExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AdvertisingExpense" xml:lang="en-US"> Advertising Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AdvertisingExpense" xml:lang="en-US"> Advertising expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AdvertisingExpense" xlink:to="lab_572HMJ97544H_us-gaap_AdvertisingExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalizedComputerSoftwareAmortization1" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CapitalizedComputerSoftwareAmortization1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CapitalizedComputerSoftwareAmortization1" xml:lang="en-US"> Capitalized Computer Software, Amortization </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CapitalizedComputerSoftwareAmortization1" xml:lang="en-US"> Amortization expense related to capitalized software </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CapitalizedComputerSoftwareAmortization1" xlink:to="lab_141438H6KL791K10I358_us-gaap_CapitalizedComputerSoftwareAmortization1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalizedComputerSoftwareNet" xlink:label="loc_350FKH75322F_us-gaap_CapitalizedComputerSoftwareNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CapitalizedComputerSoftwareNet" xml:lang="en-US"> Capitalized Computer Software, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CapitalizedComputerSoftwareNet" xml:lang="en-US"> Unamortized capitalized internal use software costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CapitalizedComputerSoftwareNet" xlink:to="lab_572HMJ97544H_us-gaap_CapitalizedComputerSoftwareNet"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IncomeTaxUncertaintiesPolicyLargestAmountOfBenefitGreaterThanPercentage" xlink:label="loc_929216F4IJ579I98G136_idt_IncomeTaxUncertaintiesPolicyLargestAmountOfBenefitGreaterThanPercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_IncomeTaxUncertaintiesPolicyLargestAmountOfBenefitGreaterThanPercentage" xml:lang="en-US"> Income Tax Uncertainties Policy Largest Amount Of Benefit Greater Than Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_IncomeTaxUncertaintiesPolicyLargestAmountOfBenefitGreaterThanPercentage" xml:lang="en-US"> Tax position ultimate settlement, percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_IncomeTaxUncertaintiesPolicyLargestAmountOfBenefitGreaterThanPercentage" xml:lang="en-US"> Income tax uncertainties policy largest amount of benefit greater than percentage. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_IncomeTaxUncertaintiesPolicyLargestAmountOfBenefitGreaterThanPercentage" xlink:to="lab_141438H6KL791K10I358_idt_IncomeTaxUncertaintiesPolicyLargestAmountOfBenefitGreaterThanPercentage"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDescription" xlink:label="loc_350FKH75322F_us-gaap_ConcentrationRiskBenchmarkDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ConcentrationRiskBenchmarkDescription" xml:lang="en-US"> Concentration Risk, Benchmark Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ConcentrationRiskBenchmarkDescription" xml:lang="en-US"> Concentration risk, description </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ConcentrationRiskBenchmarkDescription" xlink:to="lab_572HMJ97544H_us-gaap_ConcentrationRiskBenchmarkDescription"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_NumberOfCustomers" xlink:label="loc_929216F4IJ579I98G136_idt_NumberOfCustomers"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_NumberOfCustomers" xml:lang="en-US"> Number Of Customers </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_NumberOfCustomers" xml:lang="en-US"> Number of customers </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_NumberOfCustomers" xml:lang="en-US"> Number of customers. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_NumberOfCustomers" xlink:to="lab_141438H6KL791K10I358_idt_NumberOfCustomers"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_350FKH75322F_us-gaap_ConcentrationRiskPercentage1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ConcentrationRiskPercentage1" xml:lang="en-US"> Concentration Risk, Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ConcentrationRiskPercentage1" xml:lang="en-US"> Concentration risk, percentage </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ConcentrationRiskPercentage1" xlink:to="lab_572HMJ97544H_us-gaap_ConcentrationRiskPercentage1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AmortizationOfIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AmortizationOfIntangibleAssets" xml:lang="en-US"> Amortization of Intangible Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AmortizationOfIntangibleAssets" xml:lang="en-US"> Amortization expense of intangible assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_AmortizationOfIntangibleAssets" xml:lang="en-US"> Amortization expense of intangible assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AmortizationOfIntangibleAssets" xlink:to="lab_141438H6KL791K10I358_us-gaap_AmortizationOfIntangibleAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xml:lang="en-US"> Amortization expense of intangible assets with finite lives 2018 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:to="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Two </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xml:lang="en-US"> Amortization expense of intangible assets in fiscal 2019 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xml:lang="en-US"> Amortization expense of intangible assets with finite lives 2019 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:to="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Three </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xml:lang="en-US"> Amortization expense of intangible assets with finite lives 2020 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:to="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Four </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xml:lang="en-US"> Amortization expense of intangible assets in fiscal 2021 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/measurementGuidance" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xml:lang="en-US"> Amortization expense of intangible assets with finite lives 2021 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:to="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xml:lang="en-US"> Finite-Lived Intangible Assets, Amortization Expense, Year Five </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xml:lang="en-US"> Amortization expense of intangible assets in fiscal 2022 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xml:lang="en-US"> Amortization expense of intangible assets with finite lives 2022 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:to="lab_572HMJ97544H_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsNet" xml:lang="en-US"> Finite-Lived Intangible Assets, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsNet" xml:lang="en-US"> Intangible assets finite useful lives </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="lab_141438H6KL791K10I358_us-gaap_FiniteLivedIntangibleAssetsNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xlink:label="loc_350FKH75322F_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xml:lang="en-US"> Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xml:lang="en-US"> Company's investment, ownership percentage in subsidiary </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions" xlink:to="lab_572HMJ97544H_us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccountsReceivableCurrent" xlink:label="loc_929216F4IJ579I98G136_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccountsReceivableCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US"> Disposal Group Including Discontinued Operation Allowance For Doubtful Accounts Receivable Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US"> Allowance for doubtful accounts included in Held for Sale </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccountsReceivableCurrent" xml:lang="en-US"> A valuation allowance included in Assets Held for Sale for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccountsReceivableCurrent" xlink:to="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccountsReceivableCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentHoldingsTable" xlink:label="loc_350FKH75322F_us-gaap_InvestmentHoldingsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_InvestmentHoldingsTable" xml:lang="en-US"> Investment Holdings [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_InvestmentHoldingsTable" xlink:to="lab_572HMJ97544H_us-gaap_InvestmentHoldingsTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentAxis" xlink:label="loc_929216F4IJ579I98G136_invest_InvestmentAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_invest_InvestmentAxis" xml:lang="en-US"> Investment [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_invest_InvestmentAxis" xlink:to="lab_141438H6KL791K10I358_invest_InvestmentAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentDomain" xlink:label="loc_350FKH75322F_invest_InvestmentDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_invest_InvestmentDomain" xml:lang="en-US"> Investment [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_invest_InvestmentDomain" xlink:to="lab_572HMJ97544H_invest_InvestmentDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RafaelPharmaceuticalsIncMember" xlink:label="loc_929216F4IJ579I98G136_idt_RafaelPharmaceuticalsIncMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RafaelPharmaceuticalsIncMember" xml:lang="en-US"> Rafael Pharmaceuticals Inc [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RafaelPharmaceuticalsIncMember" xml:lang="en-US"> Rafael [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RafaelPharmaceuticalsIncMember" xml:lang="en-US"> Rafael Pharmaceuticals, Inc. [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RafaelPharmaceuticalsIncMember" xlink:to="lab_141438H6KL791K10I358_idt_RafaelPharmaceuticalsIncMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SummaryOfInvestmentHoldingsLineItems" xlink:label="loc_350FKH75322F_us-gaap_SummaryOfInvestmentHoldingsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SummaryOfInvestmentHoldingsLineItems" xml:lang="en-US"> Summary of Investment Holdings [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SummaryOfInvestmentHoldingsLineItems" xlink:to="lab_572HMJ97544H_us-gaap_SummaryOfInvestmentHoldingsLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfConsolidatedBalanceSheetsAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_ScheduleOfConsolidatedBalanceSheetsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfConsolidatedBalanceSheetsAbstract" xml:lang="en-US"> Schedule Of Consolidated Balance Sheets [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfConsolidatedBalanceSheetsAbstract" xml:lang="en-US"> Schedule of consolidated balance sheets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ScheduleOfConsolidatedBalanceSheetsAbstract" xlink:to="lab_141438H6KL791K10I358_idt_ScheduleOfConsolidatedBalanceSheetsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConvertibleDebtFairValueDisclosures" xlink:label="loc_350FKH75322F_us-gaap_ConvertibleDebtFairValueDisclosures"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ConvertibleDebtFairValueDisclosures" xml:lang="en-US"> Convertible Debt, Fair Value Disclosures </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ConvertibleDebtFairValueDisclosures" xml:lang="en-US"> Convertible promissory note (at fair value) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_ConvertibleDebtFairValueDisclosures" xml:lang="en-US"> Convertible promissory note (at fair value) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ConvertibleDebtFairValueDisclosures" xlink:to="lab_572HMJ97544H_us-gaap_ConvertibleDebtFairValueDisclosures"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="loc_929216F4IJ579I98G136_us-gaap_WarrantsAndRightsOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_WarrantsAndRightsOutstanding" xml:lang="en-US"> Warrants and Rights Outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_WarrantsAndRightsOutstanding" xml:lang="en-US"> Warrants (at cost) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_WarrantsAndRightsOutstanding" xml:lang="en-US"> Warrants (at cost) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_WarrantsAndRightsOutstanding" xlink:to="lab_141438H6KL791K10I358_us-gaap_WarrantsAndRightsOutstanding"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RightToReceiveAdditionalShares" xlink:label="loc_350FKH75322F_idt_RightToReceiveAdditionalShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RightToReceiveAdditionalShares" xml:lang="en-US"> Right To Receive Additional Shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_RightToReceiveAdditionalShares" xml:lang="en-US"> Right to receive additional shares (at cost) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_RightToReceiveAdditionalShares" xml:lang="en-US"> Value of right to receive additional shares. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_idt_RightToReceiveAdditionalShares" xml:lang="en-US"> Right to receive additional shares (at cost) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RightToReceiveAdditionalShares" xlink:to="lab_572HMJ97544H_idt_RightToReceiveAdditionalShares"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentOwnedAtCost" xlink:label="loc_929216F4IJ579I98G136_us-gaap_InvestmentOwnedAtCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_InvestmentOwnedAtCost" xml:lang="en-US"> Investment Owned, at Cost </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_InvestmentOwnedAtCost" xml:lang="en-US"> Carrying value of Series C preferred stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_InvestmentOwnedAtCost" xml:lang="en-US"> Total investment in Rafael </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_InvestmentOwnedAtCost" xml:lang="en-US"> Total investment in Rafael </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_InvestmentOwnedAtCost" xlink:to="lab_141438H6KL791K10I358_us-gaap_InvestmentOwnedAtCost"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_CsPharmaHoldingsMember" xlink:label="loc_350FKH75322F_idt_CsPharmaHoldingsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_CsPharmaHoldingsMember" xml:lang="en-US"> Cs Pharma Holdings [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_CsPharmaHoldingsMember" xml:lang="en-US"> CS Pharma Holdings, LLC [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_CsPharmaHoldingsMember" xlink:to="lab_572HMJ97544H_idt_CsPharmaHoldingsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LongtermDebtTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LongtermDebtTypeAxis" xml:lang="en-US"> Long-term Debt, Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LongtermDebtTypeAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_LongtermDebtTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_350FKH75322F_us-gaap_LongtermDebtTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LongtermDebtTypeDomain" xml:lang="en-US"> Long-term Debt, Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LongtermDebtTypeDomain" xlink:to="lab_572HMJ97544H_us-gaap_LongtermDebtTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConvertibleDebtMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ConvertibleDebtMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConvertibleDebtMember" xml:lang="en-US"> Convertible Debt [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ConvertibleDebtMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_ConvertibleDebtMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConvertibleNotesPayableMember" xlink:label="loc_350FKH75322F_us-gaap_ConvertibleNotesPayableMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ConvertibleNotesPayableMember" xml:lang="en-US"> Convertible Notes Payable [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ConvertibleNotesPayableMember" xml:lang="en-US"> Convertible promissory note ("Series D Note") [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ConvertibleNotesPayableMember" xlink:to="lab_572HMJ97544H_us-gaap_ConvertibleNotesPayableMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ConvertiblePromissoryNoteMember" xlink:label="loc_929216F4IJ579I98G136_idt_ConvertiblePromissoryNoteMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ConvertiblePromissoryNoteMember" xml:lang="en-US"> Convertible Promissory Note [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ConvertiblePromissoryNoteMember" xml:lang="en-US"> Convertible promissory note [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ConvertiblePromissoryNoteMember" xml:lang="en-US"> Convertible promissory note. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ConvertiblePromissoryNoteMember" xlink:to="lab_141438H6KL791K10I358_idt_ConvertiblePromissoryNoteMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="loc_350FKH75322F_us-gaap_TitleOfIndividualAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_TitleOfIndividualAxis" xml:lang="en-US"> Title of Individual [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_TitleOfIndividualAxis" xlink:to="lab_572HMJ97544H_us-gaap_TitleOfIndividualAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xml:lang="en-US"> Relationship to Entity [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_HowardAndDeborahJonasMember" xlink:label="loc_350FKH75322F_idt_HowardAndDeborahJonasMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_HowardAndDeborahJonasMember" xml:lang="en-US"> Howard And Deborah Jonas [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_HowardAndDeborahJonasMember" xml:lang="en-US"> Howard and Deborah Jonas [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_HowardAndDeborahJonasMember" xml:lang="en-US"> Howard and Deborah Jonas. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_HowardAndDeborahJonasMember" xlink:to="lab_572HMJ97544H_idt_HowardAndDeborahJonasMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_HowardSAndDeborahJonasFoundationMember" xlink:label="loc_929216F4IJ579I98G136_idt_HowardSAndDeborahJonasFoundationMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_HowardSAndDeborahJonasFoundationMember" xml:lang="en-US"> Howard S And Deborah Jonas Foundation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_HowardSAndDeborahJonasFoundationMember" xml:lang="en-US"> The Howard S. and Deborah Jonas Foundation [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_HowardSAndDeborahJonasFoundationMember" xml:lang="en-US"> The Howard S. and Deborah Jonas Foundation. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_HowardSAndDeborahJonasFoundationMember" xlink:to="lab_141438H6KL791K10I358_idt_HowardSAndDeborahJonasFoundationMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_JonasMember" xlink:label="loc_350FKH75322F_idt_JonasMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_JonasMember" xml:lang="en-US"> Jonas [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_JonasMember" xml:lang="en-US"> Howard S. Jonas [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_JonasMember" xml:lang="en-US"> Howard S. Jonas [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_JonasMember" xlink:to="lab_572HMJ97544H_idt_JonasMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ParentMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ParentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ParentMember" xml:lang="en-US"> Parent [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ParentMember" xml:lang="en-US"> IDT Corporation [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ParentMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_ParentMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_350FKH75322F_us-gaap_SubsequentEventTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SubsequentEventTypeAxis" xml:lang="en-US"> Subsequent Event Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SubsequentEventTypeAxis" xlink:to="lab_572HMJ97544H_us-gaap_SubsequentEventTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SubsequentEventTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SubsequentEventTypeDomain" xml:lang="en-US"> Subsequent Event Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SubsequentEventTypeDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_SubsequentEventTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_350FKH75322F_us-gaap_SubsequentEventMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SubsequentEventMember" xml:lang="en-US"> Subsequent Event [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SubsequentEventMember" xml:lang="en-US"> Subsequent Event [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SubsequentEventMember" xml:lang="en-US"> Subsequent Event [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SubsequentEventMember" xlink:to="lab_572HMJ97544H_us-gaap_SubsequentEventMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_InvestmentInRafaelPharmaceuticalsIncTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_InvestmentInRafaelPharmaceuticalsIncTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentInRafaelPharmaceuticalsIncTextualAbstract" xml:lang="en-US"> Investment In Rafael Pharmaceuticals Inc Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentInRafaelPharmaceuticalsIncTextualAbstract" xml:lang="en-US"> Investment in Rafael Pharmaceuticals, Inc. (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_InvestmentInRafaelPharmaceuticalsIncTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_InvestmentInRafaelPharmaceuticalsIncTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_350FKH75322F_us-gaap_DebtInstrumentFaceAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentFaceAmount" xml:lang="en-US"> Debt Instrument, Face Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentFaceAmount" xml:lang="en-US"> Debt instrument face value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentFaceAmount" xml:lang="en-US"> Convertible promissory note, principal amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentFaceAmount" xml:lang="en-US"> Convertible promissory note, principal amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DebtInstrumentFaceAmount" xlink:to="lab_572HMJ97544H_us-gaap_DebtInstrumentFaceAmount"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xml:lang="en-US"> Debt Instrument, Interest Rate, Effective Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xml:lang="en-US"> Convertible promissory note, rate of interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:to="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="loc_350FKH75322F_us-gaap_DebtInstrumentMaturityDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentMaturityDate" xml:lang="en-US"> Debt Instrument, Maturity Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentMaturityDate" xml:lang="en-US"> Convertible promissory note, maturity date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentMaturityDate" xml:lang="en-US"> Debt instrument maturity period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_572HMJ97544H_us-gaap_DebtInstrumentMaturityDate" xml:lang="en-US"> Convertible promissory note, maturity date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DebtInstrumentMaturityDate" xlink:to="lab_572HMJ97544H_us-gaap_DebtInstrumentMaturityDate"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RemainingAmountOfInvestment" xlink:label="loc_929216F4IJ579I98G136_idt_RemainingAmountOfInvestment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RemainingAmountOfInvestment" xml:lang="en-US"> Remaining Amount Of Investment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RemainingAmountOfInvestment" xml:lang="en-US"> Remaining amount of investment funded </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RemainingAmountOfInvestment" xml:lang="en-US"> Additional amount of investment funded </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_RemainingAmountOfInvestment" xml:lang="en-US"> Remaining amount of investment. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RemainingAmountOfInvestment" xlink:to="lab_141438H6KL791K10I358_idt_RemainingAmountOfInvestment"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PurchaseSharesOfCapitalStock" xlink:label="loc_350FKH75322F_idt_PurchaseSharesOfCapitalStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_PurchaseSharesOfCapitalStock" xml:lang="en-US"> Purchase Shares Of Capital Stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_PurchaseSharesOfCapitalStock" xml:lang="en-US"> Purchase shares of capital stock percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_PurchaseSharesOfCapitalStock" xml:lang="en-US"> Purchase shares of capital stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_PurchaseSharesOfCapitalStock" xlink:to="lab_572HMJ97544H_idt_PurchaseSharesOfCapitalStock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ExerciseWarrantsValue" xlink:label="loc_929216F4IJ579I98G136_idt_ExerciseWarrantsValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ExerciseWarrantsValue" xml:lang="en-US"> Exercise Warrants Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ExerciseWarrantsValue" xml:lang="en-US"> Exercise warrants value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ExerciseWarrantsValue" xml:lang="en-US"> Exercise warrants value. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ExerciseWarrantsValue" xlink:to="lab_141438H6KL791K10I358_idt_ExerciseWarrantsValue"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_InitialAmountOfInvestmentAmountsPaid" xlink:label="loc_350FKH75322F_idt_InitialAmountOfInvestmentAmountsPaid"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_InitialAmountOfInvestmentAmountsPaid" xml:lang="en-US"> Initial Amount Of Investment Amounts Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_InitialAmountOfInvestmentAmountsPaid" xml:lang="en-US"> Initial amount of investment amounts paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_InitialAmountOfInvestmentAmountsPaid" xml:lang="en-US"> Initial amount of investment amounts paid. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_InitialAmountOfInvestmentAmountsPaid" xlink:to="lab_572HMJ97544H_idt_InitialAmountOfInvestmentAmountsPaid"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentConvertibleTermsOfConversionFeature" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentConvertibleTermsOfConversionFeature"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentConvertibleTermsOfConversionFeature" xml:lang="en-US"> Debt Instrument, Convertible, Terms of Conversion Feature </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentConvertibleTermsOfConversionFeature" xml:lang="en-US"> Convertible notes conversion features, description </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentConvertibleTermsOfConversionFeature" xlink:to="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentConvertibleTermsOfConversionFeature"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MaximumAmountToBeInvested" xlink:label="loc_350FKH75322F_idt_MaximumAmountToBeInvested"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_MaximumAmountToBeInvested" xml:lang="en-US"> Maximum Amount To Be Invested </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_MaximumAmountToBeInvested" xml:lang="en-US"> Maximum amount of investment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_MaximumAmountToBeInvested" xml:lang="en-US"> Maximum amount to be invested. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_MaximumAmountToBeInvested" xlink:to="lab_572HMJ97544H_idt_MaximumAmountToBeInvested"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentRepurchaseAgreementAmountToBeReceived" xlink:label="loc_929216F4IJ579I98G136_invest_InvestmentRepurchaseAgreementAmountToBeReceived"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_invest_InvestmentRepurchaseAgreementAmountToBeReceived" xml:lang="en-US"> Investment Repurchase Agreement, Amount to be Received </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_invest_InvestmentRepurchaseAgreementAmountToBeReceived" xml:lang="en-US"> Investment amount received </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_invest_InvestmentRepurchaseAgreementAmountToBeReceived" xlink:to="lab_141438H6KL791K10I358_invest_InvestmentRepurchaseAgreementAmountToBeReceived"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromIssuanceOfMemberInterests" xlink:label="loc_350FKH75322F_idt_ProceedsFromIssuanceOfMemberInterests"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ProceedsFromIssuanceOfMemberInterests" xml:lang="en-US"> Proceeds From Issuance Of Member Interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ProceedsFromIssuanceOfMemberInterests" xml:lang="en-US"> Proceeds from issuance of member interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ProceedsFromIssuanceOfMemberInterests" xml:lang="en-US"> Proceeds from issuance of member interests. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ProceedsFromIssuanceOfMemberInterests" xlink:to="lab_572HMJ97544H_idt_ProceedsFromIssuanceOfMemberInterests"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentWarrantsExpirationDate" xlink:label="loc_929216F4IJ579I98G136_invest_InvestmentWarrantsExpirationDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_invest_InvestmentWarrantsExpirationDate" xml:lang="en-US"> Investment Warrants Expiration Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_invest_InvestmentWarrantsExpirationDate" xml:lang="en-US"> Warrants expiry date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_invest_InvestmentWarrantsExpirationDate" xlink:to="lab_141438H6KL791K10I358_invest_InvestmentWarrantsExpirationDate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLongTermInvestments" xlink:label="loc_350FKH75322F_us-gaap_OtherLongTermInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OtherLongTermInvestments" xml:lang="en-US"> Other Long-term Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherLongTermInvestments" xml:lang="en-US"> Investments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OtherLongTermInvestments" xlink:to="lab_572HMJ97544H_us-gaap_OtherLongTermInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount" xlink:label="loc_929216F4IJ579I98G136_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount" xml:lang="en-US"> Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount" xml:lang="en-US"> Maximum exposure to loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount" xlink:to="lab_141438H6KL791K10I358_us-gaap_VariableInterestEntityEntityMaximumLossExposureAmount"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_OtherCurrentLiabilities" xlink:label="loc_350FKH75322F_idt_OtherCurrentLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_OtherCurrentLiabilities" xml:lang="en-US"> Other Current Liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_OtherCurrentLiabilities" xml:lang="en-US"> Other current liabilities description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_OtherCurrentLiabilities" xml:lang="en-US"> It represents mount of liabilities classified as other, due within one year or the normal operating cycle, if longer. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_OtherCurrentLiabilities" xlink:to="lab_572HMJ97544H_idt_OtherCurrentLiabilities"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromThirdPartyMemberInterestsDescription" xlink:label="loc_929216F4IJ579I98G136_idt_ProceedsFromThirdPartyMemberInterestsDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromThirdPartyMemberInterestsDescription" xml:lang="en-US"> Proceeds From Third Party Member Interests Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromThirdPartyMemberInterestsDescription" xml:lang="en-US"> Proceeds from third party member interests, description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromThirdPartyMemberInterestsDescription" xml:lang="en-US"> Description of proceeds from third party member interests. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ProceedsFromThirdPartyMemberInterestsDescription" xlink:to="lab_141438H6KL791K10I358_idt_ProceedsFromThirdPartyMemberInterestsDescription"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_InvestmentWarrantsExerciseTermsAndExpiration" xlink:label="loc_350FKH75322F_idt_InvestmentWarrantsExerciseTermsAndExpiration"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_InvestmentWarrantsExerciseTermsAndExpiration" xml:lang="en-US"> Investment Warrants Exercise Terms And Expiration </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_InvestmentWarrantsExerciseTermsAndExpiration" xml:lang="en-US"> Warrant, description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_InvestmentWarrantsExerciseTermsAndExpiration" xml:lang="en-US"> Investment warrants exercise terms and expiration. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_InvestmentWarrantsExerciseTermsAndExpiration" xlink:to="lab_572HMJ97544H_idt_InvestmentWarrantsExerciseTermsAndExpiration"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PercentageOfDirectAndIndirectInterest" xlink:label="loc_929216F4IJ579I98G136_idt_PercentageOfDirectAndIndirectInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfDirectAndIndirectInterest" xml:lang="en-US"> Percentage Of Direct And Indirect Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfDirectAndIndirectInterest" xml:lang="en-US"> Percentage of direct and indirect interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfDirectAndIndirectInterest" xml:lang="en-US"> Percentage of direct and indirect interest. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_PercentageOfDirectAndIndirectInterest" xlink:to="lab_141438H6KL791K10I358_idt_PercentageOfDirectAndIndirectInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinorityInterestPeriodIncreaseDecrease" xlink:label="loc_350FKH75322F_us-gaap_MinorityInterestPeriodIncreaseDecrease"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_MinorityInterestPeriodIncreaseDecrease" xml:lang="en-US"> Noncontrolling Interest, Period Increase (Decrease) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_MinorityInterestPeriodIncreaseDecrease" xml:lang="en-US"> Noncontrolling interests </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_MinorityInterestPeriodIncreaseDecrease" xlink:to="lab_572HMJ97544H_us-gaap_MinorityInterestPeriodIncreaseDecrease"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PurchaseOfStockOfSubsidiary" xlink:label="loc_929216F4IJ579I98G136_idt_PurchaseOfStockOfSubsidiary"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_PurchaseOfStockOfSubsidiary" xml:lang="en-US"> Purchase Of Stock Of Subsidiary </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_PurchaseOfStockOfSubsidiary" xml:lang="en-US"> Purchase of stock of subsidiary </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_PurchaseOfStockOfSubsidiary" xml:lang="en-US"> Cash received on stock transactions. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_PurchaseOfStockOfSubsidiary" xlink:to="lab_141438H6KL791K10I358_idt_PurchaseOfStockOfSubsidiary"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="loc_350FKH75322F_us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_EquityMethodInvestmentOwnershipPercentage" xml:lang="en-US"> Equity Method Investment, Ownership Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_EquityMethodInvestmentOwnershipPercentage" xml:lang="en-US"> Stockholders, ownership percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_EquityMethodInvestmentOwnershipPercentage" xml:lang="en-US"> Holds percentages of interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:to="lab_572HMJ97544H_us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ContractualRightToReceiveAdditionalSharesPercentage" xlink:label="loc_929216F4IJ579I98G136_idt_ContractualRightToReceiveAdditionalSharesPercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ContractualRightToReceiveAdditionalSharesPercentage" xml:lang="en-US"> Contractual Right To Receive Additional Shares Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ContractualRightToReceiveAdditionalSharesPercentage" xml:lang="en-US"> Percentage of contractual right to receive additional shares </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ContractualRightToReceiveAdditionalSharesPercentage" xml:lang="en-US"> Percentage of contractual right to receive additional shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ContractualRightToReceiveAdditionalSharesPercentage" xlink:to="lab_141438H6KL791K10I358_idt_ContractualRightToReceiveAdditionalSharesPercentage"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ContractualRightToReceiveAdditionalSharesDescription" xlink:label="loc_350FKH75322F_idt_ContractualRightToReceiveAdditionalSharesDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ContractualRightToReceiveAdditionalSharesDescription" xml:lang="en-US"> Contractual Right To Receive Additional Shares Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ContractualRightToReceiveAdditionalSharesDescription" xml:lang="en-US"> Contractual right to receive additional shares, description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ContractualRightToReceiveAdditionalSharesDescription" xml:lang="en-US"> Description of contractual right to receive additional shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ContractualRightToReceiveAdditionalSharesDescription" xlink:to="lab_572HMJ97544H_idt_ContractualRightToReceiveAdditionalSharesDescription"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xml:lang="en-US"> Disposal Groups, Including Discontinued Operations [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:label="loc_350FKH75322F_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xml:lang="en-US"> Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:to="lab_572HMJ97544H_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Assets, Current [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xml:lang="en-US"> CURRENT ASSETS HELD FOR SALE: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DisposalGroupIncludingDiscountinuedOperationRestrictedCashAndCashEquivalents" xlink:label="loc_350FKH75322F_idt_DisposalGroupIncludingDiscountinuedOperationRestrictedCashAndCashEquivalents"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationRestrictedCashAndCashEquivalents" xml:lang="en-US"> Disposal Group, Including Discountinued Operation, Restricted Cash And Cash Equivalents </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationRestrictedCashAndCashEquivalents" xml:lang="en-US"> Restricted cash and cash equivalents </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationRestrictedCashAndCashEquivalents" xml:lang="en-US"> Amount classified as restricted cash and cash equivalents attributable to disposal group held for sale or disposed of. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DisposalGroupIncludingDiscountinuedOperationRestrictedCashAndCashEquivalents" xlink:to="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationRestrictedCashAndCashEquivalents"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet" xml:lang="en-US"> Trade accounts receivable, net of allowance for doubtful accounts of $2,550 and $861 at July 31, 2017 and 2016, respectively </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent" xlink:label="loc_350FKH75322F_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent" xml:lang="en-US"> Prepaid expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent" xlink:to="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Other Assets, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xml:lang="en-US"> Other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:label="loc_350FKH75322F_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Assets, Noncurrent [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xml:lang="en-US"> NONCURRENT ASSETS HELD FOR SALE: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:to="lab_572HMJ97544H_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xml:lang="en-US"> Property, plant and equipment, net of accumulated depreciation of $228 and $213 at July 31, 2017 and 2016, respectively </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent" xlink:label="loc_350FKH75322F_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent" xml:lang="en-US"> Other intangibles, net of accumulated amortization of $57 and $37 at July 31, 2017 and 2016, respectively </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent" xlink:to="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationIntangibleAssetsNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Assets, Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xml:lang="en-US"> TOTAL NONCURRENT ASSETS HELD FOR SALE </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xml:lang="en-US"> TOTAL NONCURRENT ASSETS HELD FOR SALE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:label="loc_350FKH75322F_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xml:lang="en-US"> CURRENT LIABILITIES HELD FOR SALE: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:to="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Accounts Payable, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" xml:lang="en-US"> Trade accounts payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" xlink:label="loc_350FKH75322F_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" xml:lang="en-US"> Accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent" xlink:to="lab_572HMJ97544H_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedLiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Deferred Revenue, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent" xml:lang="en-US"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DisposalGroupIncludingDiscountinuedOperationCustomerDeposits" xlink:label="loc_350FKH75322F_idt_DisposalGroupIncludingDiscountinuedOperationCustomerDeposits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationCustomerDeposits" xml:lang="en-US"> Disposal Group, Including Discountinued Operation, Customer Deposits </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationCustomerDeposits" xml:lang="en-US"> Customer deposits </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationCustomerDeposits" xml:lang="en-US"> Amount classified as customer deposits attributable to disposal group held for sale or disposed of. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DisposalGroupIncludingDiscountinuedOperationCustomerDeposits" xlink:to="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscountinuedOperationCustomerDeposits"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Other Liabilities, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xml:lang="en-US"> Other current liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:label="loc_350FKH75322F_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xml:lang="en-US"> NONCURRENT LIABILITIES HELD FOR SALE: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract" xlink:to="lab_572HMJ97544H_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationNoncurrentAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xml:lang="en-US"> Other liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherNoncurrentLiabilities"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem" xlink:label="loc_350FKH75322F_idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem" xml:lang="en-US"> Income Loss From Continuing Operations Before Income Taxes Extraordinary Item </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem" xml:lang="en-US"> INCOME BEFORE INCOME TAXES ATTRIBUTABLE TO IDT CORPORATION </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem" xml:lang="en-US"> INCOME BEFORE INCOME TAXES ATTRIBUTABLE TO IDT CORPORATION </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem" xml:lang="en-US"> This element represents the income loss from continuing operations before income taxes extraordinary item. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem" xlink:to="lab_572HMJ97544H_idt_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItem"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AssetsAndLiabilitiesHeldForSaleTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_AssetsAndLiabilitiesHeldForSaleTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AssetsAndLiabilitiesHeldForSaleTextualAbstract" xml:lang="en-US"> Assets And Liabilities Held For Sale Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_AssetsAndLiabilitiesHeldForSaleTextualAbstract" xml:lang="en-US"> IDT Financial Services Holding Limited Assets and Liabilities Held for Sale (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_AssetsAndLiabilitiesHeldForSaleTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_AssetsAndLiabilitiesHeldForSaleTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries" xlink:label="loc_350FKH75322F_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries" xml:lang="en-US"> Proceeds from Divestiture of Interest in Consolidated Subsidiaries </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries" xml:lang="en-US"> Common stock sold to Ericsson </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries" xml:lang="en-US"> Outstanding equity interests </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries" xlink:to="lab_572HMJ97544H_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccounts" xlink:label="loc_929216F4IJ579I98G136_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccounts" xml:lang="en-US"> Disposal Group Including Discontinued Operation Allowance For Doubtful Accounts </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccounts" xml:lang="en-US"> Allowance for doubtful accounts </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccounts" xml:lang="en-US"> Amount classified as allowance for doubtful accounts attributable to disposal group held for sale or disposed of. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccounts" xlink:to="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAllowanceForDoubtfulAccounts"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsNet" xlink:label="loc_350FKH75322F_us-gaap_AssetsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AssetsNet" xml:lang="en-US"> Net Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AssetsNet" xml:lang="en-US"> Net asset value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AssetsNet" xlink:to="lab_572HMJ97544H_us-gaap_AssetsNet"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedDepreciation" xlink:label="loc_929216F4IJ579I98G136_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedDepreciation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedDepreciation" xml:lang="en-US"> Disposal Group Including Discontinued Operation Accumulated Depreciation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedDepreciation" xml:lang="en-US"> Property, plant and equipment, net of accumulated depreciation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedDepreciation" xml:lang="en-US"> Amount classified as accumulated depreciation attributable to disposal group held for sale or disposed of. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedDepreciation" xlink:to="lab_141438H6KL791K10I358_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedDepreciation"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization" xlink:label="loc_350FKH75322F_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization" xml:lang="en-US"> Disposal Group Including Discontinued Operation Accumulated Amortization </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization" xml:lang="en-US"> Other intangibles, net of accumulated amortization </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization" xml:lang="en-US"> Amount classified as accumulated amortization attributable to disposal group held for sale or disposed of. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization" xlink:to="lab_572HMJ97544H_idt_DisposalGroupIncludingDiscontinuedOperationAccumulatedAmortization"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable" xml:lang="en-US"> Schedule of Subsidiary of Limited Liability Company or Limited Partnership [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfSubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipTable"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ZedgeMember" xlink:label="loc_350FKH75322F_idt_ZedgeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ZedgeMember" xml:lang="en-US"> Zedge [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ZedgeMember" xml:lang="en-US"> Zedge [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_ZedgeMember" xml:lang="en-US"> Zedge [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/disclosureGuidance" xlink:label="lab_572HMJ97544H_idt_ZedgeMember" xml:lang="en-US"> All Other (Zedge) [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ZedgeMember" xlink:to="lab_572HMJ97544H_idt_ZedgeMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfInterestFabrixSystemsLtdTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_SaleOfInterestFabrixSystemsLtdTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfInterestFabrixSystemsLtdTextualAbstract" xml:lang="en-US"> Sale Of Interest Fabrix Systems Ltd Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfInterestFabrixSystemsLtdTextualAbstract" xml:lang="en-US"> Sale of Interest in Fabrix Systems Ltd. (Textual) </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests" xlink:label="loc_350FKH75322F_idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests" xml:lang="en-US"> Minority Interest Combined Ownership Percentage By Parent And Non Controlling Interests </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests" xml:lang="en-US"> Sale of stock to Ericsson in percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests" xml:lang="en-US"> Minority interest combined ownership percentage by parent and non controlling interests. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests" xlink:to="lab_572HMJ97544H_idt_MinorityInterestCombinedOwnershipPercentageByParentAndNonControllingInterests"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction" xml:lang="en-US"> Sale of Stock, Percentage of Ownership before Transaction </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction" xml:lang="en-US"> Company owns in Fabrix in percentage </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction" xlink:to="lab_141438H6KL791K10I358_us-gaap_SaleOfStockPercentageOfOwnershipBeforeTransaction"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xlink:label="loc_350FKH75322F_idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xml:lang="en-US"> Proceeds From Divestiture Of Interest In Consolidated Subsidiaries Parent Only Portion </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xml:lang="en-US"> Proceeds from divestiture of interest in consolidated subsidiaries </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xml:lang="en-US"> The cash inflow associated with divestiture of interest in consolidated subsidiaries parent only portion. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion" xlink:to="lab_572HMJ97544H_idt_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiariesParentOnlyPortion"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EscrowDeposit" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EscrowDeposit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EscrowDeposit" xml:lang="en-US"> Escrow Deposit </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EscrowDeposit" xml:lang="en-US"> Escrow deposit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EscrowDeposit" xlink:to="lab_141438H6KL791K10I358_us-gaap_EscrowDeposit"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_EscrowDepositDisbursement" xlink:label="loc_350FKH75322F_idt_EscrowDepositDisbursement"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_EscrowDepositDisbursement" xml:lang="en-US"> Escrow Deposit Disbursement </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_EscrowDepositDisbursement" xml:lang="en-US"> Escrow deposit disbursement </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_EscrowDepositDisbursement" xml:lang="en-US"> Escrow deposit disbursement. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_EscrowDepositDisbursement" xlink:to="lab_572HMJ97544H_idt_EscrowDepositDisbursement"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xml:lang="en-US"> Schedule Of Available For Sale Securities [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xml:lang="en-US"> Schedule of Available-for-sale Securities [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_350FKH75322F_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xml:lang="en-US"> Major Types of Debt and Equity Securities [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xml:lang="en-US"> Major Types of Debt and Equity Securities [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:to="lab_572HMJ97544H_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xml:lang="en-US"> Major Types of Debt and Equity Securities [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xml:lang="en-US"> Major Types of Debt and Equity Securities [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_350FKH75322F_us-gaap_CertificatesOfDepositMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CertificatesOfDepositMember" xml:lang="en-US"> Certificates Of Deposit [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CertificatesOfDepositMember" xml:lang="en-US"> Certificates of Deposit [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CertificatesOfDepositMember" xml:lang="en-US"> Certificates of deposit [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CertificatesOfDepositMember" xlink:to="lab_572HMJ97544H_us-gaap_CertificatesOfDepositMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember" xml:lang="en-US"> US Government-sponsored Enterprises Debt Securities [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember" xml:lang="en-US"> Federal Government Sponsored Enterprise notes [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember" xml:lang="en-US"> Federal Government Sponsored Enterprise notes [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_InternationalAgencyNotesMember" xlink:label="loc_350FKH75322F_idt_InternationalAgencyNotesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_InternationalAgencyNotesMember" xml:lang="en-US"> International Agency Notes [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_InternationalAgencyNotesMember" xml:lang="en-US"> International agency notes [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_InternationalAgencyNotesMember" xml:lang="en-US"> International agency notes. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_InternationalAgencyNotesMember" xlink:to="lab_572HMJ97544H_idt_InternationalAgencyNotesMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MutualFundsMember" xlink:label="loc_929216F4IJ579I98G136_idt_MutualFundsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_MutualFundsMember" xml:lang="en-US"> Mutual Funds [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_MutualFundsMember" xml:lang="en-US"> Mutual funds [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_MutualFundsMember" xml:lang="en-US"> Mutual funds. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_MutualFundsMember" xlink:to="lab_141438H6KL791K10I358_idt_MutualFundsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateBondSecuritiesMember" xlink:label="loc_350FKH75322F_us-gaap_CorporateBondSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CorporateBondSecuritiesMember" xml:lang="en-US"> Corporate Bond Securities [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CorporateBondSecuritiesMember" xml:lang="en-US"> Corporate bonds [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CorporateBondSecuritiesMember" xlink:to="lab_572HMJ97544H_us-gaap_CorporateBondSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EquitySecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EquitySecuritiesMember" xml:lang="en-US"> Equity Securities [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EquitySecuritiesMember" xml:lang="en-US"> Equity Securities [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EquitySecuritiesMember" xml:lang="en-US"> Equity [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EquitySecuritiesMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_EquitySecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_USTreasuryNotesSecuritiesMember" xlink:label="loc_350FKH75322F_us-gaap_USTreasuryNotesSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_USTreasuryNotesSecuritiesMember" xml:lang="en-US"> US Treasury Notes Securities [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_USTreasuryNotesSecuritiesMember" xml:lang="en-US"> U.S. Treasury notes [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_USTreasuryNotesSecuritiesMember" xlink:to="lab_572HMJ97544H_us-gaap_USTreasuryNotesSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MunicipalBondsMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_MunicipalBondsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_MunicipalBondsMember" xml:lang="en-US"> Municipal Bonds [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_MunicipalBondsMember" xml:lang="en-US"> Municipal Bonds [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_MunicipalBondsMember" xml:lang="en-US"> Municipal bonds [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_MunicipalBondsMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_MunicipalBondsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xml:lang="en-US"> Schedule Of Available For Sale Securities [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xml:lang="en-US"> Schedule of Available-for-sale Securities [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesCurrentAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AvailableForSaleSecuritiesCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesCurrentAbstract" xml:lang="en-US"> Available-for-sale Securities, Current [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesCurrentAbstract" xml:lang="en-US"> Available-for-sale securities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AvailableForSaleSecuritiesCurrentAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesCurrentAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="loc_350FKH75322F_us-gaap_AvailableForSaleSecuritiesAmortizedCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesAmortizedCost" xml:lang="en-US"> Available For Sale Securities Amortized Cost </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesAmortizedCost" xml:lang="en-US"> Amortized Cost </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:to="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesAmortizedCost"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xml:lang="en-US"> Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xml:lang="en-US"> Gross Unrealized Gains </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AvailableForSaleSecuritiesTotalGrossUnrealizedGains" xml:lang="en-US"> Available For Sale Securities Total Gross Unrealized Gains </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_AvailableForSaleSecuritiesTotalGrossUnrealizedGains" xml:lang="en-US"> Gross Unrealized Gains, Total </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_AvailableForSaleSecuritiesTotalGrossUnrealizedLosses" xml:lang="en-US"> Available For Sale Securities Total Gross Unrealized Losses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_AvailableForSaleSecuritiesTotalGrossUnrealizedLosses" xml:lang="en-US"> Gross Unrealized Losses, Total </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_AvailableForSaleSecuritiesTotalGrossUnrealizedLosses" xml:lang="en-US"> Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale debt securities. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_572HMJ97544H_idt_AvailableForSaleSecuritiesTotalGrossUnrealizedLosses" xml:lang="en-US"> Gross Unrealized Losses, Total </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xml:lang="en-US"> Available For Sale Securities Debt Maturities Within One Year Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xml:lang="en-US"> Within one year </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:label="loc_350FKH75322F_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xml:lang="en-US"> After one year through five years </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue" xml:lang="en-US"> Available For Sale Securities Debt Maturities After Ten Years Fair Value </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xml:lang="en-US"> Available-for-sale Securities, Debt Securities </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGains" xlink:label="loc_350FKH75322F_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains" xml:lang="en-US"> Realized gains from sales of available-for-sale securities </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses" xml:lang="en-US"> Available-for-sale Securities, Gross Realized Losses </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xlink:label="loc_350FKH75322F_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xml:lang="en-US"> Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xml:lang="en-US"> Unrealized losses, less than twelve months or longer </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xlink:to="lab_572HMJ97544H_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xml:lang="en-US"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xml:lang="en-US"> Fair Value Measurements, Recurring and Nonrecurring [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_350FKH75322F_us-gaap_FairValueByMeasurementFrequencyAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueByMeasurementFrequencyAxis" xml:lang="en-US"> Fair Value By Measurement Frequency [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueByMeasurementFrequencyAxis" xml:lang="en-US"> Measurement Frequency [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="lab_572HMJ97544H_us-gaap_FairValueByMeasurementFrequencyAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueMeasurementFrequencyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementFrequencyDomain" xml:lang="en-US"> Fair Value Measurement Frequency [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementFrequencyDomain" xml:lang="en-US"> Fair Value, Measurement Frequency [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueMeasurementFrequencyDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementFrequencyDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_350FKH75322F_us-gaap_FairValueMeasurementsRecurringMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueMeasurementsRecurringMember" xml:lang="en-US"> Fair Value Measurements Recurring [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueMeasurementsRecurringMember" xml:lang="en-US"> Fair Value Measurements, Recurring basis [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FairValueMeasurementsRecurringMember" xlink:to="lab_572HMJ97544H_us-gaap_FairValueMeasurementsRecurringMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueByFairValueHierarchyLevelAxis" xml:lang="en-US"> Fair Value By Fair Value Hierarchy Level [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueByFairValueHierarchyLevelAxis" xml:lang="en-US"> Fair Value, Hierarchy [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_350FKH75322F_us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xml:lang="en-US"> Fair Value Measurements Fair Value Hierarchy [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xml:lang="en-US"> Fair Value Hierarchy [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="lab_572HMJ97544H_us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueInputsLevel1Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueInputsLevel1Member" xml:lang="en-US"> Fair Value Inputs Level 1 [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueInputsLevel1Member" xml:lang="en-US"> Level 1 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueInputsLevel1Member" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueInputsLevel1Member"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_350FKH75322F_us-gaap_FairValueInputsLevel2Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueInputsLevel2Member" xml:lang="en-US"> Fair Value Inputs Level 2 [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueInputsLevel2Member" xml:lang="en-US"> Level 2 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FairValueInputsLevel2Member" xlink:to="lab_572HMJ97544H_us-gaap_FairValueInputsLevel2Member"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueInputsLevel3Member"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueInputsLevel3Member" xml:lang="en-US"> Fair Value Inputs Level 3 [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueInputsLevel3Member" xml:lang="en-US"> Level 3 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueInputsLevel3Member" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueInputsLevel3Member"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_350FKH75322F_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xml:lang="en-US"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xml:lang="en-US"> Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AssetsFairValueDisclosureAbstract"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherInvestments" xml:lang="en-US"> Rafael convertible promissory notes </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss" xml:lang="en-US"> Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:label="loc_350FKH75322F_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xml:lang="en-US"> Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xml:lang="en-US"> Purchases </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases" xlink:to="lab_572HMJ97544H_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:label="loc_929216F4IJ579I98G136_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xml:lang="en-US"> Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xml:lang="en-US"> Change in unrealized gains or losses for the period included in earnings for assets held at the end of the period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1" xlink:to="lab_141438H6KL791K10I358_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_FairValueMeasurementTextualAbstract" xlink:label="loc_350FKH75322F_idt_FairValueMeasurementTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_FairValueMeasurementTextualAbstract" xml:lang="en-US"> Fair Value Measurement Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_FairValueMeasurementTextualAbstract" xml:lang="en-US"> Fair Value Measurements (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_FairValueMeasurementTextualAbstract" xlink:to="lab_572HMJ97544H_idt_FairValueMeasurementTextualAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_InvestmentInHedgeFunds" xlink:label="loc_929216F4IJ579I98G136_idt_InvestmentInHedgeFunds"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentInHedgeFunds" xml:lang="en-US"> Investment In Hedge Funds </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentInHedgeFunds" xml:lang="en-US"> Fair value of investments in hedge funds </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentInHedgeFunds" xml:lang="en-US"> Investment in hedge funds. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_InvestmentInHedgeFunds" xlink:to="lab_141438H6KL791K10I358_idt_InvestmentInHedgeFunds"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueEstimateNotPracticableCostMethodInvestments" xlink:label="loc_350FKH75322F_us-gaap_FairValueEstimateNotPracticableCostMethodInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FairValueEstimateNotPracticableCostMethodInvestments" xml:lang="en-US"> Carrying value of investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FairValueEstimateNotPracticableCostMethodInvestments" xml:lang="en-US"> Carrying value of investments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FairValueEstimateNotPracticableCostMethodInvestments" xlink:to="lab_572HMJ97544H_us-gaap_FairValueEstimateNotPracticableCostMethodInvestments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ForeignCurrencyFairValueHedgesAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ForeignCurrencyFairValueHedgesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ForeignCurrencyFairValueHedgesAbstract" xml:lang="en-US"> Foreign Currency Fair Value Hedges [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ForeignCurrencyFairValueHedgesAbstract" xml:lang="en-US"> Gain (Loss) Recognized On Derivatives [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ForeignCurrencyFairValueHedgesAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_ForeignCurrencyFairValueHedgesAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:label="loc_350FKH75322F_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xml:lang="en-US"> Derivative Instruments Not Designated as Hedging Instruments [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xml:lang="en-US"> Derivatives not designated or not qualifying as hedging instruments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract" xlink:to="lab_572HMJ97544H_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:label="loc_929216F4IJ579I98G136_us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xml:lang="en-US"> Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xml:lang="en-US"> Foreign exchange forwards </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments" xlink:to="lab_141438H6KL791K10I358_us-gaap_GainLossOnForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstruments"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_EquipmentGross" xlink:label="loc_350FKH75322F_idt_EquipmentGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_EquipmentGross" xml:lang="en-US"> Equipment Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_EquipmentGross" xml:lang="en-US"> Equipment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_EquipmentGross" xml:lang="en-US"> Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_EquipmentGross" xlink:to="lab_572HMJ97544H_idt_EquipmentGross"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LandAndBuildingsGross" xlink:label="loc_929216F4IJ579I98G136_idt_LandAndBuildingsGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_LandAndBuildingsGross" xml:lang="en-US"> Land And Buildings Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_LandAndBuildingsGross" xml:lang="en-US"> Land and buildings </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_LandAndBuildingsGross" xml:lang="en-US"> Amount before accumulated depletion of building or real estate held for productive use, excluding land held for sale. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_LandAndBuildingsGross" xlink:to="lab_141438H6KL791K10I358_idt_LandAndBuildingsGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalizedComputerSoftwareGross" xlink:label="loc_350FKH75322F_us-gaap_CapitalizedComputerSoftwareGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CapitalizedComputerSoftwareGross" xml:lang="en-US"> Capitalized Computer Software, Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CapitalizedComputerSoftwareGross" xml:lang="en-US"> Computer software </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CapitalizedComputerSoftwareGross" xlink:to="lab_572HMJ97544H_us-gaap_CapitalizedComputerSoftwareGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseholdImprovementsGross" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LeaseholdImprovementsGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LeaseholdImprovementsGross" xml:lang="en-US"> Leasehold Improvements, Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LeaseholdImprovementsGross" xml:lang="en-US"> Leasehold improvements </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LeaseholdImprovementsGross" xlink:to="lab_141438H6KL791K10I358_us-gaap_LeaseholdImprovementsGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesGross" xlink:label="loc_350FKH75322F_us-gaap_FurnitureAndFixturesGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_FurnitureAndFixturesGross" xml:lang="en-US"> Furniture and Fixtures, Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_FurnitureAndFixturesGross" xml:lang="en-US"> Furniture and fixtures </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_FurnitureAndFixturesGross" xlink:to="lab_572HMJ97544H_us-gaap_FurnitureAndFixturesGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentGross" xml:lang="en-US"> Property, Plant and Equipment, Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentGross" xml:lang="en-US"> Property, plant and equipment, gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentGross" xml:lang="en-US"> Property, plant and equipment, gross </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertyPlantAndEquipmentGross" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertyPlantAndEquipmentGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_350FKH75322F_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US"> Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US"> Less accumulated depreciation and amortization </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US"> Less accumulated depreciation and amortization </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xml:lang="en-US"> Less accumulated depreciation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="lab_572HMJ97544H_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PropertyPlantAndEquipmentTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_PropertyPlantAndEquipmentTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_PropertyPlantAndEquipmentTextualAbstract" xml:lang="en-US"> Property, Plant And Equipment Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_PropertyPlantAndEquipmentTextualAbstract" xml:lang="en-US"> Property, Plant and Equipment (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_PropertyPlantAndEquipmentTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_PropertyPlantAndEquipmentTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_350FKH75322F_us-gaap_Depreciation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_Depreciation" xml:lang="en-US"> Depreciation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_Depreciation" xml:lang="en-US"> Depreciation and amortization expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_Depreciation" xlink:to="lab_572HMJ97544H_us-gaap_Depreciation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable" xml:lang="en-US"> Schedule of Indefinite-Lived Intangible Assets [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_TelecomPlatformServicesMember" xlink:label="loc_350FKH75322F_idt_TelecomPlatformServicesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_TelecomPlatformServicesMember" xml:lang="en-US"> Telecom Platform Services [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_TelecomPlatformServicesMember" xml:lang="en-US"> Telecom Platform Services [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_TelecomPlatformServicesMember" xml:lang="en-US"> IDT Telecom [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_TelecomPlatformServicesMember" xml:lang="en-US"> Telecom Platform Services [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_idt_TelecomPlatformServicesMember" xml:lang="en-US"> IDT Telecom sales and administrative functions [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_TelecomPlatformServicesMember" xlink:to="lab_572HMJ97544H_idt_TelecomPlatformServicesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" xml:lang="en-US"> Indefinite-lived Intangible Assets [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems" xlink:to="lab_141438H6KL791K10I358_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:label="loc_350FKH75322F_us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xml:lang="en-US"> Goodwill, Foreign Currency Translation Gain (Loss) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xml:lang="en-US"> Foreign currency translation adjustments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:to="lab_572HMJ97544H_us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit" xlink:label="loc_929216F4IJ579I98G136_idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit" xml:lang="en-US"> Goodwill Written Off Related To Spin Off Of Business Unit </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit" xml:lang="en-US"> Zedge Spin-Off </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit" xml:lang="en-US"> Zedge Spin-Off </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit" xml:lang="en-US"> Goodwill written off related to spin off of business unit. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit" xlink:to="lab_141438H6KL791K10I358_idt_GoodwillWrittenOffRelatedToSpinOffOfBusinessUnit"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfMemberInterestTable" xlink:label="loc_350FKH75322F_idt_SaleOfMemberInterestTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_SaleOfMemberInterestTable" xml:lang="en-US"> Sale Of Member Interest [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_SaleOfMemberInterestTable" xlink:to="lab_572HMJ97544H_idt_SaleOfMemberInterestTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SeriesCPreferredStockMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SeriesCPreferredStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SeriesCPreferredStockMember" xml:lang="en-US"> Series C Preferred Stock [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SeriesCPreferredStockMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_SeriesCPreferredStockMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CounterpartyNameAxis" xlink:label="loc_350FKH75322F_us-gaap_CounterpartyNameAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CounterpartyNameAxis" xml:lang="en-US"> Counterparty Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CounterpartyNameAxis" xlink:to="lab_572HMJ97544H_us-gaap_CounterpartyNameAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RepurchaseAgreementCounterpartyNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RepurchaseAgreementCounterpartyNameDomain" xml:lang="en-US"> Counterparty Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RepurchaseAgreementCounterpartyNameDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_RepurchaseAgreementCounterpartyNameDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_VisaEuropeMember" xlink:label="loc_350FKH75322F_idt_VisaEuropeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_VisaEuropeMember" xml:lang="en-US"> Visa Europe [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_VisaEuropeMember" xml:lang="en-US"> Visa Europe. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_VisaEuropeMember" xlink:to="lab_572HMJ97544H_idt_VisaEuropeMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfMemberInterestLineItems" xlink:label="loc_929216F4IJ579I98G136_idt_SaleOfMemberInterestLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SaleOfMemberInterestLineItems" xml:lang="en-US"> Sale Of Member Interest [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_SaleOfMemberInterestLineItems" xlink:to="lab_141438H6KL791K10I358_idt_SaleOfMemberInterestLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SaleOfMemberInterestInVisaEuropeLtdTextualAbstract" xlink:label="loc_350FKH75322F_idt_SaleOfMemberInterestInVisaEuropeLtdTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_SaleOfMemberInterestInVisaEuropeLtdTextualAbstract" xml:lang="en-US"> Sale Of Member Interest In Visa Europe Ltd Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_SaleOfMemberInterestInVisaEuropeLtdTextualAbstract" xml:lang="en-US"> Sale of Member Interest in Visa Europe Ltd. (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_SaleOfMemberInterestInVisaEuropeLtdTextualAbstract" xlink:to="lab_572HMJ97544H_idt_SaleOfMemberInterestInVisaEuropeLtdTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfOtherInvestments" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ProceedsFromSaleOfOtherInvestments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ProceedsFromSaleOfOtherInvestments" xml:lang="en-US"> Proceeds from Sale of Other Investments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ProceedsFromSaleOfOtherInvestments" xml:lang="en-US"> Cash acquired on acquisition date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ProceedsFromSaleOfOtherInvestments" xlink:to="lab_141438H6KL791K10I358_us-gaap_ProceedsFromSaleOfOtherInvestments"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromSaleOfOtherInvestmentsAmountReceivable" xlink:label="loc_350FKH75322F_idt_ProceedsFromSaleOfOtherInvestmentsAmountReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfOtherInvestmentsAmountReceivable" xml:lang="en-US"> Proceeds From Sale Of Other Investments Amount Receivable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfOtherInvestmentsAmountReceivable" xml:lang="en-US"> Deferred payment receivable on acquisition date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfOtherInvestmentsAmountReceivable" xml:lang="en-US"> Proceeds from sale of other investments amount receivable. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ProceedsFromSaleOfOtherInvestmentsAmountReceivable" xlink:to="lab_572HMJ97544H_idt_ProceedsFromSaleOfOtherInvestmentsAmountReceivable"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromSaleOfOtherInvestmentsSharesOfConvertiblePreferredStock" xlink:label="loc_929216F4IJ579I98G136_idt_ProceedsFromSaleOfOtherInvestmentsSharesOfConvertiblePreferredStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfOtherInvestmentsSharesOfConvertiblePreferredStock" xml:lang="en-US"> Proceeds From Sale Of Other Investments Shares Of Convertible Preferred Stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfOtherInvestmentsSharesOfConvertiblePreferredStock" xml:lang="en-US"> Preferred stock, shares issued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfOtherInvestmentsSharesOfConvertiblePreferredStock" xml:lang="en-US"> Proceeds from sale of other investments shares of convertible preferred stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ProceedsFromSaleOfOtherInvestmentsSharesOfConvertiblePreferredStock" xlink:to="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfOtherInvestmentsSharesOfConvertiblePreferredStock"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ConvertiblePreferredStockSharesOfCommonToBeIssuedUponConversion" xlink:label="loc_350FKH75322F_idt_ConvertiblePreferredStockSharesOfCommonToBeIssuedUponConversion"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ConvertiblePreferredStockSharesOfCommonToBeIssuedUponConversion" xml:lang="en-US"> Convertible Preferred Stock Shares Of Common To Be Issued Upon Conversion </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ConvertiblePreferredStockSharesOfCommonToBeIssuedUponConversion" xml:lang="en-US"> Conversion into stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ConvertiblePreferredStockSharesOfCommonToBeIssuedUponConversion" xml:lang="en-US"> Convertible preferred stock shares of common to be issued upon conversion. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ConvertiblePreferredStockSharesOfCommonToBeIssuedUponConversion" xlink:to="lab_572HMJ97544H_idt_ConvertiblePreferredStockSharesOfCommonToBeIssuedUponConversion"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConversionOfStockDescription" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ConversionOfStockDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConversionOfStockDescription" xml:lang="en-US"> Conversion of Stock, Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConversionOfStockDescription" xml:lang="en-US"> Conversion of stock, description </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ConversionOfStockDescription" xlink:to="lab_141438H6KL791K10I358_us-gaap_ConversionOfStockDescription"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DeferredCashPaymentDescription" xlink:label="loc_350FKH75322F_idt_DeferredCashPaymentDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DeferredCashPaymentDescription" xml:lang="en-US"> Deferred Cash Payment Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_DeferredCashPaymentDescription" xml:lang="en-US"> Deferred cash payment, description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DeferredCashPaymentDescription" xml:lang="en-US"> Description of deferred cash payment. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DeferredCashPaymentDescription" xlink:to="lab_572HMJ97544H_idt_DeferredCashPaymentDescription"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SummaryOfOtherOperatingExpensesAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_SummaryOfOtherOperatingExpensesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SummaryOfOtherOperatingExpensesAbstract" xml:lang="en-US"> Summary Of Other Operating Expenses [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SummaryOfOtherOperatingExpensesAbstract" xml:lang="en-US"> Summary of other operating expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_SummaryOfOtherOperatingExpensesAbstract" xlink:to="lab_141438H6KL791K10I358_idt_SummaryOfOtherOperatingExpensesAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LossContingencyLossInPeriodIncludingLegalFeesOtherGeneralExpense" xlink:label="loc_350FKH75322F_idt_LossContingencyLossInPeriodIncludingLegalFeesOtherGeneralExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_LossContingencyLossInPeriodIncludingLegalFeesOtherGeneralExpense" xml:lang="en-US"> Loss Contingency Loss In Period Including Legal Fees Other General Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_LossContingencyLossInPeriodIncludingLegalFeesOtherGeneralExpense" xml:lang="en-US"> Corporate -loss related to legal settlement and mutual release </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_LossContingencyLossInPeriodIncludingLegalFeesOtherGeneralExpense" xml:lang="en-US"> Loss contingency Loss in period including legal fees other general expense. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_LossContingencyLossInPeriodIncludingLegalFeesOtherGeneralExpense" xlink:to="lab_572HMJ97544H_idt_LossContingencyLossInPeriodIncludingLegalFeesOtherGeneralExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_929216F4IJ579I98G136_us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xml:lang="en-US"> Gain (Loss) on Disposition of Property Plant Equipment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xml:lang="en-US"> Telecom Platform Services- loss on disposal of property, plant and equipment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:to="lab_141438H6KL791K10I358_us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_CorporateLossRelatedToSettlement" xlink:label="loc_350FKH75322F_idt_CorporateLossRelatedToSettlement"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_CorporateLossRelatedToSettlement" xml:lang="en-US"> Corporate Loss Related To Settlement </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_CorporateLossRelatedToSettlement" xml:lang="en-US"> Corporate-gain (losses) related to legal matters </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_CorporateLossRelatedToSettlement" xml:lang="en-US"> Corporate loss related to settlement. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_CorporateLossRelatedToSettlement" xlink:to="lab_572HMJ97544H_idt_CorporateLossRelatedToSettlement"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_OtherOperatingLossGains" xlink:label="loc_929216F4IJ579I98G136_idt_OtherOperatingLossGains"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_OtherOperatingLossGains" xml:lang="en-US"> Other Operating Loss Gains </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_141438H6KL791K10I358_idt_OtherOperatingLossGains" xml:lang="en-US"> TOTAL </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_OtherOperatingLossGains" xml:lang="en-US"> Other aggregate amounts of gains or losses resulting from operating activities not otherwise defined. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_OtherOperatingLossGains" xlink:to="lab_141438H6KL791K10I358_idt_OtherOperatingLossGains"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xml:lang="en-US"> Schedule of Related Party Transactions, by Related Party [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xml:lang="en-US"> Related Party [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_350FKH75322F_us-gaap_RelatedPartyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RelatedPartyDomain" xml:lang="en-US"> Related Party [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RelatedPartyDomain" xlink:to="lab_572HMJ97544H_us-gaap_RelatedPartyDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StraightPathMember" xlink:label="loc_929216F4IJ579I98G136_idt_StraightPathMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_StraightPathMember" xml:lang="en-US"> Straight Path [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_StraightPathMember" xml:lang="en-US"> Straight Path [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_StraightPathMember" xml:lang="en-US"> Straight Path. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_StraightPathMember" xlink:to="lab_141438H6KL791K10I358_idt_StraightPathMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StraightPathIpGroupMember" xlink:label="loc_350FKH75322F_idt_StraightPathIpGroupMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_StraightPathIpGroupMember" xml:lang="en-US"> Straight Path Ip Group [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_StraightPathIpGroupMember" xml:lang="en-US"> Straight Path IP Group [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_StraightPathIpGroupMember" xlink:to="lab_572HMJ97544H_idt_StraightPathIpGroupMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RelatedPartyTransactionLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RelatedPartyTransactionLineItems" xml:lang="en-US"> Related Party Transaction [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RelatedPartyTransactionLineItems" xlink:to="lab_141438H6KL791K10I358_us-gaap_RelatedPartyTransactionLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_OtherOperatingExpensesTextualAbstract" xlink:label="loc_350FKH75322F_idt_OtherOperatingExpensesTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_OtherOperatingExpensesTextualAbstract" xml:lang="en-US"> Other Operating Expenses Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_OtherOperatingExpensesTextualAbstract" xml:lang="en-US"> Other Operating Expenses (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_OtherOperatingExpensesTextualAbstract" xlink:to="lab_572HMJ97544H_idt_OtherOperatingExpensesTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossContingencyLossInPeriod" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LossContingencyLossInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LossContingencyLossInPeriod" xml:lang="en-US"> Loss Contingency, Loss in Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LossContingencyLossInPeriod" xml:lang="en-US"> Settlement and mutual release payment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LossContingencyLossInPeriod" xlink:to="lab_141438H6KL791K10I358_us-gaap_LossContingencyLossInPeriod"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LossContingencyExpectedPaymentForAssets" xlink:label="loc_350FKH75322F_idt_LossContingencyExpectedPaymentForAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_LossContingencyExpectedPaymentForAssets" xml:lang="en-US"> Loss Contingency Expected Payment For Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_LossContingencyExpectedPaymentForAssets" xml:lang="en-US"> Settlement and mutual release payment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_LossContingencyExpectedPaymentForAssets" xml:lang="en-US"> The amount of loss contingency expected payment for assets. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_LossContingencyExpectedPaymentForAssets" xlink:to="lab_572HMJ97544H_idt_LossContingencyExpectedPaymentForAssets"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PercentageOfLicenseNetProceedsToBePaidToRelatedPartyStockholders" xlink:label="loc_929216F4IJ579I98G136_idt_PercentageOfLicenseNetProceedsToBePaidToRelatedPartyStockholders"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfLicenseNetProceedsToBePaidToRelatedPartyStockholders" xml:lang="en-US"> Percentage Of License Net Proceeds To Be Paid To Related Party Stockholders </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfLicenseNetProceedsToBePaidToRelatedPartyStockholders" xml:lang="en-US"> Stockholders, ownership percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfLicenseNetProceedsToBePaidToRelatedPartyStockholders" xml:lang="en-US"> Percentage of license net proceeds to be paid to related party stockholders. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_PercentageOfLicenseNetProceedsToBePaidToRelatedPartyStockholders" xlink:to="lab_141438H6KL791K10I358_idt_PercentageOfLicenseNetProceedsToBePaidToRelatedPartyStockholders"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionSaleToRelatedPartyAmount" xlink:label="loc_350FKH75322F_idt_RelatedPartyTransactionSaleToRelatedPartyAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionSaleToRelatedPartyAmount" xml:lang="en-US"> Related Party Transaction Sale To Related Party Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionSaleToRelatedPartyAmount" xml:lang="en-US"> Ownership interest exchange </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionSaleToRelatedPartyAmount" xml:lang="en-US"> Related party transaction sale to related party amount. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RelatedPartyTransactionSaleToRelatedPartyAmount" xlink:to="lab_572HMJ97544H_idt_RelatedPartyTransactionSaleToRelatedPartyAmount"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LossContingencyLossInPeriodOtherGeneralExpense" xlink:label="loc_929216F4IJ579I98G136_idt_LossContingencyLossInPeriodOtherGeneralExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_LossContingencyLossInPeriodOtherGeneralExpense" xml:lang="en-US"> Loss Contingency Loss In Period Other General Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_LossContingencyLossInPeriodOtherGeneralExpense" xml:lang="en-US"> Liability related to the settlement and mutual release </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_LossContingencyLossInPeriodOtherGeneralExpense" xml:lang="en-US"> Loss contingency loss in period other general expense. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_LossContingencyLossInPeriodOtherGeneralExpense" xlink:to="lab_141438H6KL791K10I358_idt_LossContingencyLossInPeriodOtherGeneralExpense"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LossContingencyLegalFeesInPeriodOtherGeneralExpense" xlink:label="loc_350FKH75322F_idt_LossContingencyLegalFeesInPeriodOtherGeneralExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_LossContingencyLegalFeesInPeriodOtherGeneralExpense" xml:lang="en-US"> Loss Contingency Legal Fees In Period Other General Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_LossContingencyLegalFeesInPeriodOtherGeneralExpense" xml:lang="en-US"> Legal fees on settlement and mutual release </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_LossContingencyLegalFeesInPeriodOtherGeneralExpense" xml:lang="en-US"> Loss contingency legal fees in period other general expense. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_LossContingencyLegalFeesInPeriodOtherGeneralExpense" xlink:to="lab_572HMJ97544H_idt_LossContingencyLegalFeesInPeriodOtherGeneralExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SettlementLiabilitiesCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SettlementLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SettlementLiabilitiesCurrent" xml:lang="en-US"> Settlement Liabilities, Current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SettlementLiabilitiesCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_SettlementLiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnusualOrInfrequentItemInsuranceProceeds" xlink:label="loc_350FKH75322F_us-gaap_UnusualOrInfrequentItemInsuranceProceeds"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_UnusualOrInfrequentItemInsuranceProceeds" xml:lang="en-US"> Unusual or Infrequent Item, or Both, Insurance Proceeds </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_UnusualOrInfrequentItemInsuranceProceeds" xml:lang="en-US"> Proceeds related to the FCC investigation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_UnusualOrInfrequentItemInsuranceProceeds" xlink:to="lab_572HMJ97544H_us-gaap_UnusualOrInfrequentItemInsuranceProceeds"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentTable" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentTable" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="loc_350FKH75322F_us-gaap_LineOfCreditFacilityAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityAxis" xml:lang="en-US"> Line Of Credit Facility [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityAxis" xml:lang="en-US"> Lender Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LineOfCreditFacilityAxis" xlink:to="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityLenderDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityLenderDomain" xml:lang="en-US"> Line Of Credit Facility Lender [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityLenderDomain" xml:lang="en-US"> Line of Credit Facility, Lender [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityLenderDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityLenderDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_JulyTwelveTwoThousandTwelveMember" xlink:label="loc_350FKH75322F_idt_JulyTwelveTwoThousandTwelveMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_JulyTwelveTwoThousandTwelveMember" xml:lang="en-US"> July Twelve Two Thousand Twelve [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_JulyTwelveTwoThousandTwelveMember" xml:lang="en-US"> July 12, 2012 [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_JulyTwelveTwoThousandTwelveMember" xml:lang="en-US"> July Twelve Two Thousand Twelve. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_JulyTwelveTwoThousandTwelveMember" xlink:to="lab_572HMJ97544H_idt_JulyTwelveTwoThousandTwelveMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrimeRateMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PrimeRateMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PrimeRateMember" xml:lang="en-US"> Prime Rate [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PrimeRateMember" xml:lang="en-US"> Prime Rate [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PrimeRateMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_PrimeRateMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShortTermDebtTypeAxis" xlink:label="loc_350FKH75322F_us-gaap_ShortTermDebtTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShortTermDebtTypeAxis" xml:lang="en-US"> Short-term Debt, Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShortTermDebtTypeAxis" xlink:to="lab_572HMJ97544H_us-gaap_ShortTermDebtTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShortTermDebtTypeDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShortTermDebtTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShortTermDebtTypeDomain" xml:lang="en-US"> Short-term Debt, Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShortTermDebtTypeDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShortTermDebtTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_350FKH75322F_us-gaap_LineOfCreditMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditMember" xml:lang="en-US"> Line of Credit [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditMember" xml:lang="en-US"> Line of credit [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LineOfCreditMember" xlink:to="lab_572HMJ97544H_us-gaap_LineOfCreditMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentLineItems" xml:lang="en-US"> Debt Instrument [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentLineItems" xml:lang="en-US"> Debt Instrument [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DebtInstrumentLineItems" xlink:to="lab_141438H6KL791K10I358_us-gaap_DebtInstrumentLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RevolvingCreditLoanPayableTextualAbstract" xlink:label="loc_350FKH75322F_idt_RevolvingCreditLoanPayableTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RevolvingCreditLoanPayableTextualAbstract" xml:lang="en-US"> Revolving Credit Loan Payable Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_RevolvingCreditLoanPayableTextualAbstract" xml:lang="en-US"> Revolving Credit Loan Payable (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RevolvingCreditLoanPayableTextualAbstract" xlink:to="lab_572HMJ97544H_idt_RevolvingCreditLoanPayableTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xml:lang="en-US"> Line Of Credit Facility Maximum Borrowing Capacity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xml:lang="en-US"> Maximum principal amount of credit agreement </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:to="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_350FKH75322F_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xml:lang="en-US"> Line of Credit Facility, Remaining Borrowing Capacity </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xml:lang="en-US"> Unused outstanding amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:to="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityExpirationDate1" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityExpirationDate1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityExpirationDate1" xml:lang="en-US"> Line of Credit Facility, Expiration Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityExpirationDate1" xml:lang="en-US"> Line of credit maturity date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityExpirationDate1" xlink:to="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityExpirationDate1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShortTermBankLoansAndNotesPayable" xlink:label="loc_350FKH75322F_us-gaap_ShortTermBankLoansAndNotesPayable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShortTermBankLoansAndNotesPayable" xml:lang="en-US"> Short-term Bank Loans and Notes Payable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShortTermBankLoansAndNotesPayable" xml:lang="en-US"> Line of credit facility, outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShortTermBankLoansAndNotesPayable" xml:lang="en-US"> Revolving credit loan payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShortTermBankLoansAndNotesPayable" xlink:to="lab_572HMJ97544H_us-gaap_ShortTermBankLoansAndNotesPayable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xml:lang="en-US"> Line of Credit Facility, Unused Capacity, Commitment Fee Percentage </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xml:lang="en-US"> Average percentage of commitment fee per annum </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage" xlink:to="lab_141438H6KL791K10I358_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LineOfCreditCovenantMaximumAmountOfLoansAndAdvancesToAffiliatesOrSubsidiaries" xlink:label="loc_350FKH75322F_idt_LineOfCreditCovenantMaximumAmountOfLoansAndAdvancesToAffiliatesOrSubsidiaries"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_LineOfCreditCovenantMaximumAmountOfLoansAndAdvancesToAffiliatesOrSubsidiaries" xml:lang="en-US"> Line Of Credit Covenant Maximum Amount Of Loans And Advances To Affiliates Or Subsidiaries </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_LineOfCreditCovenantMaximumAmountOfLoansAndAdvancesToAffiliatesOrSubsidiaries" xml:lang="en-US"> Maximum amount of investments in and advances to affiliates at fair value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_LineOfCreditCovenantMaximumAmountOfLoansAndAdvancesToAffiliatesOrSubsidiaries" xml:lang="en-US"> Line of Credit Covenant Maximum Amount of Loans and Advances to Affiliates or Subsidiaries </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_LineOfCreditCovenantMaximumAmountOfLoansAndAdvancesToAffiliatesOrSubsidiaries" xlink:to="lab_572HMJ97544H_idt_LineOfCreditCovenantMaximumAmountOfLoansAndAdvancesToAffiliatesOrSubsidiaries"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_InvestmentsInAndAdvancesToAffiliates" xlink:label="loc_929216F4IJ579I98G136_idt_InvestmentsInAndAdvancesToAffiliates"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentsInAndAdvancesToAffiliates" xml:lang="en-US"> Investments In And Advances To Affiliates </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentsInAndAdvancesToAffiliates" xml:lang="en-US"> Aggregate loans and advances to affiliates and subsidiaries </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_InvestmentsInAndAdvancesToAffiliates" xml:lang="en-US"> Investments In And Advances To Affiliates </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_InvestmentsInAndAdvancesToAffiliates" xlink:to="lab_141438H6KL791K10I358_idt_InvestmentsInAndAdvancesToAffiliates"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_LineOfCreditUtilizedForLettersOfCreditOutstandingAmount" xlink:label="loc_350FKH75322F_idt_LineOfCreditUtilizedForLettersOfCreditOutstandingAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_LineOfCreditUtilizedForLettersOfCreditOutstandingAmount" xml:lang="en-US"> Line Of Credit Utilized For Letters Of Credit Outstanding Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_LineOfCreditUtilizedForLettersOfCreditOutstandingAmount" xml:lang="en-US"> Line of credit utilized for letters of credit outstanding amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_LineOfCreditUtilizedForLettersOfCreditOutstandingAmount" xml:lang="en-US"> Line of credit utilized for letters of credit outstanding amount. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_LineOfCreditUtilizedForLettersOfCreditOutstandingAmount" xlink:to="lab_572HMJ97544H_idt_LineOfCreditUtilizedForLettersOfCreditOutstandingAmount"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_BasisPointsSpread" xlink:label="loc_929216F4IJ579I98G136_idt_BasisPointsSpread"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_BasisPointsSpread" xml:lang="en-US"> Basis Points Spread </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_BasisPointsSpread" xml:lang="en-US"> U.S. Prime rate basis points </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_BasisPointsSpread" xml:lang="en-US"> Basis Points Spread </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_BasisPointsSpread" xlink:to="lab_141438H6KL791K10I358_idt_BasisPointsSpread"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateDescription" xlink:label="loc_350FKH75322F_us-gaap_LineOfCreditFacilityInterestRateDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityInterestRateDescription" xml:lang="en-US"> Line Of Credit Facility Interest Rate Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityInterestRateDescription" xml:lang="en-US"> Interest rate description </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LineOfCreditFacilityInterestRateDescription" xlink:to="lab_572HMJ97544H_us-gaap_LineOfCreditFacilityInterestRateDescription"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AccruedCarrierMinutesTerminationExpenses" xlink:label="loc_929216F4IJ579I98G136_idt_AccruedCarrierMinutesTerminationExpenses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AccruedCarrierMinutesTerminationExpenses" xml:lang="en-US"> Accrued Carrier Minutes Termination Expenses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_AccruedCarrierMinutesTerminationExpenses" xml:lang="en-US"> Carrier minutes termination </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_AccruedCarrierMinutesTerminationExpenses" xml:lang="en-US"> Accrued carrier minutes termination expenses. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_AccruedCarrierMinutesTerminationExpenses" xlink:to="lab_141438H6KL791K10I358_idt_AccruedCarrierMinutesTerminationExpenses"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AccruedNetworkConnectivityServicesExpenses" xlink:label="loc_350FKH75322F_idt_AccruedNetworkConnectivityServicesExpenses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_AccruedNetworkConnectivityServicesExpenses" xml:lang="en-US"> Accrued Network Connectivity Services Expenses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_AccruedNetworkConnectivityServicesExpenses" xml:lang="en-US"> Carrier network connectivity, toll-free and 800 services </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_AccruedNetworkConnectivityServicesExpenses" xml:lang="en-US"> Accrued network connectivity services expenses. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_AccruedNetworkConnectivityServicesExpenses" xlink:to="lab_572HMJ97544H_idt_AccruedNetworkConnectivityServicesExpenses"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AccruedRegulatoryFeesCurrent" xlink:label="loc_929216F4IJ579I98G136_idt_AccruedRegulatoryFeesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AccruedRegulatoryFeesCurrent" xml:lang="en-US"> Accrued Regulatory Fees Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_AccruedRegulatoryFeesCurrent" xml:lang="en-US"> Regulatory fees and taxes </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_AccruedRegulatoryFeesCurrent" xml:lang="en-US"> Accrued regulatory fees current. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_AccruedRegulatoryFeesCurrent" xlink:to="lab_141438H6KL791K10I358_idt_AccruedRegulatoryFeesCurrent"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AccruedLegalSettlementsCurrent" xlink:label="loc_350FKH75322F_idt_AccruedLegalSettlementsCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_AccruedLegalSettlementsCurrent" xml:lang="en-US"> Accrued Legal Settlements Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_AccruedLegalSettlementsCurrent" xml:lang="en-US"> Legal settlements </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_AccruedLegalSettlementsCurrent" xml:lang="en-US"> Accrued legal settlements current. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_AccruedLegalSettlementsCurrent" xlink:to="lab_572HMJ97544H_idt_AccruedLegalSettlementsCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeRelatedLiabilitiesCurrent" xml:lang="en-US"> Employee-related Liabilities, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeRelatedLiabilitiesCurrent" xml:lang="en-US"> Compensation costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrent" xlink:label="loc_350FKH75322F_us-gaap_AccruedProfessionalFeesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccruedProfessionalFeesCurrent" xml:lang="en-US"> Accrued Professional Fees, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccruedProfessionalFeesCurrent" xml:lang="en-US"> Legal and professional fees </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccruedProfessionalFeesCurrent" xlink:to="lab_572HMJ97544H_us-gaap_AccruedProfessionalFeesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OtherAccruedLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherAccruedLiabilitiesCurrent" xml:lang="en-US"> Other Accrued Liabilities, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OtherAccruedLiabilitiesCurrent" xml:lang="en-US"> Other </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OtherAccruedLiabilitiesCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_OtherAccruedLiabilitiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xml:lang="en-US"> Schedule of Segment Reporting Information, by Segment [Table] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xml:lang="en-US"> Schedule of Segment Reporting Information, by Segment [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IdtTelecomMember" xlink:label="loc_929216F4IJ579I98G136_idt_IdtTelecomMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_IdtTelecomMember" xml:lang="en-US"> Idt Telecom [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_IdtTelecomMember" xml:lang="en-US"> IDT Telecom [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_IdtTelecomMember" xml:lang="en-US"> Idt Telecom [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_IdtTelecomMember" xlink:to="lab_141438H6KL791K10I358_idt_IdtTelecomMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_WorkforceReductionMember" xlink:label="loc_350FKH75322F_idt_WorkforceReductionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_WorkforceReductionMember" xml:lang="en-US"> Workforce Reduction [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_WorkforceReductionMember" xml:lang="en-US"> Workforce reduction [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_WorkforceReductionMember" xml:lang="en-US"> Workforce Reduction [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_WorkforceReductionMember" xlink:to="lab_572HMJ97544H_idt_WorkforceReductionMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_UnrelatedWorkforceReductionMember" xlink:label="loc_929216F4IJ579I98G136_idt_UnrelatedWorkforceReductionMember"/>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SeveranceExpenseTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_SeveranceExpenseTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SeveranceExpenseTextualAbstract" xml:lang="en-US"> Severance Expense Textual [Abstract] </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfOtherIncomeExpenseNetAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_ScheduleOfOtherIncomeExpenseNetAbstract"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecuritiesGainLoss" xlink:label="loc_929216F4IJ579I98G136_us-gaap_MarketableSecuritiesGainLoss"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnInvestments" xlink:label="loc_350FKH75322F_us-gaap_GainLossOnInvestments"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OtherNonoperatingIncomeExpense"/>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DeferredTaxAssetsGrossAbstract" xlink:to="lab_572HMJ97544H_us-gaap_DeferredTaxAssetsGrossAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xml:lang="en-US"> Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xml:lang="en-US"> Bad debt reserve </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:label="loc_350FKH75322F_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xml:lang="en-US"> Accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:to="lab_572HMJ97544H_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xml:lang="en-US"> Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xml:lang="en-US"> Stock options and restricted stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:to="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards" xlink:label="loc_350FKH75322F_us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLosses"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" xlink:label="loc_350FKH75322F_us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment"/>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DeferredTaxAssetsUnrealizedGains" xlink:label="loc_929216F4IJ579I98G136_idt_DeferredTaxAssetsUnrealizedGains"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_350FKH75322F_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherReconcilingItems" xlink:label="loc_350FKH75322F_us-gaap_IncomeTaxReconciliationOtherReconcilingItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeTaxReconciliationOtherReconcilingItems" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncomeTaxReconciliationOtherReconcilingItems" xml:lang="en-US"> Other </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_350FKH75322F_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xml:lang="en-US"> State and local income tax, net of federal benefit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:to="lab_572HMJ97544H_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowanceCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsValuationAllowanceCurrent"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsValuationAllowanceCurrent" xml:lang="en-US"> Valuation allowance - Balance at beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsValuationAllowanceCurrent" xml:lang="en-US"> Valuation allowance - Balance at beginning of year </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DeferredTaxAssetsValuationAllowanceCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DeferredTaxAssetsValuationAllowanceCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:label="loc_350FKH75322F_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xml:lang="en-US"> Valuation Allowances and Reserves, Additions for Charges to Cost and Expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xml:lang="en-US"> Valuation allowance - Additions charged to costs and expenses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xml:lang="en-US"> Income tax expense on deferred tax assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense" xlink:to="lab_572HMJ97544H_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDeductions" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ValuationAllowancesAndReservesDeductions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ValuationAllowancesAndReservesDeductions" xml:lang="en-US"> Valuation Allowances and Reserves, Deductions </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ValuationAllowancesAndReservesDeductions" xml:lang="en-US"> Valuation allowance - Deductions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ValuationAllowancesAndReservesDeductions" xlink:to="lab_141438H6KL791K10I358_us-gaap_ValuationAllowancesAndReservesDeductions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxContingencyTable" xlink:label="loc_350FKH75322F_us-gaap_IncomeTaxContingencyTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeTaxContingencyTable" xml:lang="en-US"> Income Tax Contingency [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncomeTaxContingencyTable" xlink:to="lab_572HMJ97544H_us-gaap_IncomeTaxContingencyTable"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_NetTwoPhoneMember" xlink:label="loc_929216F4IJ579I98G136_idt_NetTwoPhoneMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_NetTwoPhoneMember" xml:lang="en-US"> Net Two Phone [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_NetTwoPhoneMember" xml:lang="en-US"> Net2Phone [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_NetTwoPhoneMember" xml:lang="en-US"> Net2phone [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_NetTwoPhoneMember" xlink:to="lab_141438H6KL791K10I358_idt_NetTwoPhoneMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ElmionNetherlandsBVMember" xlink:label="loc_350FKH75322F_idt_ElmionNetherlandsBVMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ElmionNetherlandsBVMember" xml:lang="en-US"> Elmion Netherlands B V [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ElmionNetherlandsBVMember" xml:lang="en-US"> Elmion Netherlands B.V. [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ElmionNetherlandsBVMember" xlink:to="lab_572HMJ97544H_idt_ElmionNetherlandsBVMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ValuationAllowancesAndReservesTypeAxis" xml:lang="en-US"> Valuation Allowances and Reserves Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ValuationAllowancesAndReservesTypeAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowancesAndReservesDomain" xlink:label="loc_350FKH75322F_us-gaap_ValuationAllowancesAndReservesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ValuationAllowancesAndReservesDomain" xml:lang="en-US"> Valuation Allowances and Reserves [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ValuationAllowancesAndReservesDomain" xlink:to="lab_572HMJ97544H_us-gaap_ValuationAllowancesAndReservesDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xml:lang="en-US"> Valuation Allowance of Deferred Tax Assets [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xml:lang="en-US"> US Deferred Tax Assets [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxContingencyLineItems" xlink:label="loc_350FKH75322F_us-gaap_IncomeTaxContingencyLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeTaxContingencyLineItems" xml:lang="en-US"> Income Tax Contingency [Line Items] </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IncomeTaxesTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_IncomeTaxesTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_IncomeTaxesTextualAbstract" xml:lang="en-US"> Income Taxes Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_IncomeTaxesTextualAbstract" xml:lang="en-US"> Income Taxes (Textual) </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_FederalAndStateTaxNetOperatingLossCarryForwards" xlink:label="loc_350FKH75322F_idt_FederalAndStateTaxNetOperatingLossCarryForwards"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_FederalAndStateTaxNetOperatingLossCarryForwards" xml:lang="en-US"> Federal And State Tax Net Operating Loss Carry Forwards </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_FederalAndStateTaxNetOperatingLossCarryForwards" xml:lang="en-US"> Federal and state net operating loss carryforwards </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_FederalAndStateTaxNetOperatingLossCarryForwards" xml:lang="en-US"> Federal and state net operating loss carryforwards. </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_NetOperatingLossCarryForwardsBeginsToExpire" xlink:label="loc_929216F4IJ579I98G136_idt_NetOperatingLossCarryForwardsBeginsToExpire"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_NetOperatingLossCarryForwardsBeginsToExpire" xml:lang="en-US"> Net Operating Loss Carry Forwards Begins To Expire </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_NetOperatingLossCarryForwardsBeginsToExpire" xml:lang="en-US"> Net operating loss carryforwards expiration date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_NetOperatingLossCarryForwardsBeginsToExpire" xml:lang="en-US"> Net Operating Loss Carryforwards Begins To Expire. </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLossCarryforwardsExpirationDate" xlink:label="loc_350FKH75322F_us-gaap_OperatingLossCarryforwardsExpirationDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLossCarryforwardsExpirationDate" xml:lang="en-US"> Operating Loss Carryforwards, Expiration Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLossCarryforwardsExpirationDate" xml:lang="en-US"> Net operating losses expiration date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLossCarryforwardsExpirationDate" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLossCarryforwardsExpirationDate"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ForeignNetOperatingLossCarryForwards" xlink:label="loc_929216F4IJ579I98G136_idt_ForeignNetOperatingLossCarryForwards"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ForeignNetOperatingLossCarryForwards" xml:lang="en-US"> Foreign Net Operating Loss Carry Forwards </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ForeignNetOperatingLossCarryForwards" xml:lang="en-US"> Foreign net operating losses </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ForeignNetOperatingLossCarryForwards" xml:lang="en-US"> Foreign net operating loss carryforwards. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ForeignNetOperatingLossCarryForwards" xlink:to="lab_141438H6KL791K10I358_idt_ForeignNetOperatingLossCarryForwards"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ForeignNetOperatingLossCarryForwardsNoExpiration" xlink:label="loc_350FKH75322F_idt_ForeignNetOperatingLossCarryForwardsNoExpiration"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsNoExpiration" xml:lang="en-US"> Foreign Net Operating Loss Carry Forwards No Expiration </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsNoExpiration" xml:lang="en-US"> Foreign net operating loss, no expiration </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsNoExpiration" xml:lang="en-US"> Foreign net operating loss carryforwards no expiration. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ForeignNetOperatingLossCarryForwardsNoExpiration" xlink:to="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsNoExpiration"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ForeignNetOperatingLossCarryForwardsExpirationTwoToTenYears" xlink:label="loc_929216F4IJ579I98G136_idt_ForeignNetOperatingLossCarryForwardsExpirationTwoToTenYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ForeignNetOperatingLossCarryForwardsExpirationTwoToTenYears" xml:lang="en-US"> Foreign Net Operating Loss Carry Forwards Expiration Two To Ten Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ForeignNetOperatingLossCarryForwardsExpirationTwoToTenYears" xml:lang="en-US"> Foreign net operating loss, expiration in two to nine years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ForeignNetOperatingLossCarryForwardsExpirationTwoToTenYears" xml:lang="en-US"> Foreign net operating loss, expiration in two to ten years. </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ForeignNetOperatingLossCarryForwardsExpirationTwentyYears" xlink:label="loc_350FKH75322F_idt_ForeignNetOperatingLossCarryForwardsExpirationTwentyYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsExpirationTwentyYears" xml:lang="en-US"> Foreign Net Operating Loss Carry Forwards Expiration Twenty Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsExpirationTwentyYears" xml:lang="en-US"> Foreign net operating loss, expiration in twenty years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsExpirationTwentyYears" xml:lang="en-US"> Foreign net operating loss, expiration in twenty years. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ForeignNetOperatingLossCarryForwardsExpirationTwentyYears" xlink:to="lab_572HMJ97544H_idt_ForeignNetOperatingLossCarryForwardsExpirationTwentyYears"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SubsidiaryTaxFederalNetOperatingLossCarryForwards" xlink:label="loc_929216F4IJ579I98G136_idt_SubsidiaryTaxFederalNetOperatingLossCarryForwards"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SubsidiaryTaxFederalNetOperatingLossCarryForwards" xml:lang="en-US"> Subsidiary Tax Federal Net Operating Loss Carry Forwards </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SubsidiaryTaxFederalNetOperatingLossCarryForwards" xml:lang="en-US"> Net operating losses, Federal </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SubsidiaryTaxFederalNetOperatingLossCarryForwards" xml:lang="en-US"> Subsidiary tax federal net operating loss carryforwards. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_SubsidiaryTaxFederalNetOperatingLossCarryForwards" xlink:to="lab_141438H6KL791K10I358_idt_SubsidiaryTaxFederalNetOperatingLossCarryForwards"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_NetOperatingLossCarryForwardsYearOfExpiration" xlink:label="loc_350FKH75322F_idt_NetOperatingLossCarryForwardsYearOfExpiration"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_NetOperatingLossCarryForwardsYearOfExpiration" xml:lang="en-US"> Net Operating Loss Carry Forwards Year Of Expiration </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_NetOperatingLossCarryForwardsYearOfExpiration" xml:lang="en-US"> Net operating losses expiration description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_NetOperatingLossCarryForwardsYearOfExpiration" xml:lang="en-US"> Net operating loss carryforwards year of expiration. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_NetOperatingLossCarryForwardsYearOfExpiration" xlink:to="lab_572HMJ97544H_idt_NetOperatingLossCarryForwardsYearOfExpiration"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_TotalSubsidiaryTaxNetOperatingLossCarryForwardsAnnualLimitAmountUnderInternalRevenueCode" xlink:label="loc_929216F4IJ579I98G136_idt_TotalSubsidiaryTaxNetOperatingLossCarryForwardsAnnualLimitAmountUnderInternalRevenueCode"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_TotalSubsidiaryTaxNetOperatingLossCarryForwardsAnnualLimitAmountUnderInternalRevenueCode" xml:lang="en-US"> Total Subsidiary Tax Net Operating Loss Carry Forwards Annual Limit Amount Under Internal Revenue Code </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_TotalSubsidiaryTaxNetOperatingLossCarryForwardsAnnualLimitAmountUnderInternalRevenueCode" xml:lang="en-US"> Losses limited under internal revenue code </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_TotalSubsidiaryTaxNetOperatingLossCarryForwardsAnnualLimitAmountUnderInternalRevenueCode" xml:lang="en-US"> Total Subsidiary Tax Net Operating Loss Carry Forwards Annual Limit Amount Under Internal Revenue Code. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_TotalSubsidiaryTaxNetOperatingLossCarryForwardsAnnualLimitAmountUnderInternalRevenueCode" xlink:to="lab_141438H6KL791K10I358_idt_TotalSubsidiaryTaxNetOperatingLossCarryForwardsAnnualLimitAmountUnderInternalRevenueCode"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:label="loc_350FKH75322F_us-gaap_UndistributedEarningsOfForeignSubsidiaries"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_UndistributedEarningsOfForeignSubsidiaries" xml:lang="en-US"> Undistributed Earnings of Foreign Subsidiaries </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_UndistributedEarningsOfForeignSubsidiaries" xml:lang="en-US"> Cumulative undistributed foreign earnings </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_UndistributedEarningsOfForeignSubsidiaries" xlink:to="lab_572HMJ97544H_us-gaap_UndistributedEarningsOfForeignSubsidiaries"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued" xlink:label="loc_929216F4IJ579I98G136_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued" xml:lang="en-US"> Unrecognized Tax Benefits, Interest on Income Taxes Accrued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued" xml:lang="en-US"> Accrued interest included in current income taxes payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued" xlink:to="lab_141438H6KL791K10I358_us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardAmount" xlink:label="loc_350FKH75322F_us-gaap_TaxCreditCarryforwardAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_TaxCreditCarryforwardAmount" xml:lang="en-US"> Tax Credit Carryforward, Amount </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_TaxCreditCarryforwardAmount" xml:lang="en-US"> Tax credits to be received </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_TaxCreditCarryforwardAmount" xlink:to="lab_572HMJ97544H_us-gaap_TaxCreditCarryforwardAmount"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBuildings" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquireBuildings"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireBuildings" xml:lang="en-US"> Payments to Acquire Buildings </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireBuildings" xml:lang="en-US"> Payments for investment in building </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PaymentsToAcquireBuildings" xlink:to="lab_141438H6KL791K10I358_us-gaap_PaymentsToAcquireBuildings"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardDescription" xlink:label="loc_350FKH75322F_us-gaap_TaxCreditCarryforwardDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_TaxCreditCarryforwardDescription" xml:lang="en-US"> Tax Credit Carryforward, Description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_TaxCreditCarryforwardDescription" xml:lang="en-US"> Tax credit, description </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_TaxCreditCarryforwardDescription" xlink:to="lab_572HMJ97544H_us-gaap_TaxCreditCarryforwardDescription"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfStockByClassTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfStockByClassTable" xml:lang="en-US"> Schedule of Stock by Class [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfStockByClassTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfStockByClassTable"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_EmployeeMember" xlink:label="loc_350FKH75322F_idt_EmployeeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_EmployeeMember" xml:lang="en-US"> Employee [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_EmployeeMember" xml:lang="en-US"> Employee [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_EmployeeMember" xml:lang="en-US"> Represents information realted to employee. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_EmployeeMember" xlink:to="lab_572HMJ97544H_idt_EmployeeMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OptionIndexedToIssuersEquityTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OptionIndexedToIssuersEquityTypeAxis" xml:lang="en-US"> Option Indexed to Issuer's Equity, Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OptionIndexedToIssuersEquityTypeAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_OptionIndexedToIssuersEquityTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:label="loc_350FKH75322F_us-gaap_OptionIndexedToIssuersEquityTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xml:lang="en-US"> Option Indexed to Issuer's Equity, Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OptionIndexedToIssuersEquityTypeDomain" xlink:to="lab_572HMJ97544H_us-gaap_OptionIndexedToIssuersEquityTypeDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EmployeeStockOptionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeStockOptionMember" xml:lang="en-US"> Employee Stock Option [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeStockOptionMember" xml:lang="en-US"> Stock options [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeStockOptionMember" xml:lang="en-US"> 2015 Stock Option and Incentive Plan [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EmployeeStockOptionMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_EmployeeStockOptionMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_OtherPurchasersMember" xlink:label="loc_350FKH75322F_idt_OtherPurchasersMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_OtherPurchasersMember" xml:lang="en-US"> Other Purchasers [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_OtherPurchasersMember" xml:lang="en-US"> Other Purchasers [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_OtherPurchasersMember" xlink:to="lab_572HMJ97544H_idt_OtherPurchasersMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardDateAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AwardDateAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AwardDateAxis" xml:lang="en-US"> Award Date [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AwardDateAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_AwardDateAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardDateDomain" xlink:label="loc_350FKH75322F_us-gaap_AwardDateDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AwardDateDomain" xml:lang="en-US"> Award Date [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AwardDateDomain" xlink:to="lab_572HMJ97544H_us-gaap_AwardDateDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MayTwoThousandEighteenMember" xlink:label="loc_929216F4IJ579I98G136_idt_MayTwoThousandEighteenMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_MayTwoThousandEighteenMember" xml:lang="en-US"> May Two Thousand Eighteen [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_MayTwoThousandEighteenMember" xml:lang="en-US"> May 2, 2018 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_MayTwoThousandEighteenMember" xlink:to="lab_141438H6KL791K10I358_idt_MayTwoThousandEighteenMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MayTwoThousandNinteenMember" xlink:label="loc_350FKH75322F_idt_MayTwoThousandNinteenMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_MayTwoThousandNinteenMember" xml:lang="en-US"> May Two Thousand Ninteen [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_MayTwoThousandNinteenMember" xml:lang="en-US"> May 2, 2019 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_MayTwoThousandNinteenMember" xlink:to="lab_572HMJ97544H_idt_MayTwoThousandNinteenMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MayTwoThousandTwentyMember" xlink:label="loc_929216F4IJ579I98G136_idt_MayTwoThousandTwentyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_MayTwoThousandTwentyMember" xml:lang="en-US"> May Two Thousand Twenty [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_MayTwoThousandTwentyMember" xml:lang="en-US"> May 2, 2020 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_MayTwoThousandTwentyMember" xlink:to="lab_141438H6KL791K10I358_idt_MayTwoThousandTwentyMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_350FKH75322F_us-gaap_ClassOfStockLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ClassOfStockLineItems" xml:lang="en-US"> Class of Stock [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ClassOfStockLineItems" xlink:to="lab_572HMJ97544H_us-gaap_ClassOfStockLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_EquityTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_EquityTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_EquityTextualAbstract" xml:lang="en-US"> Equity Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_EquityTextualAbstract" xml:lang="en-US"> Equity (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_EquityTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_EquityTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockVotingRights" xlink:label="loc_350FKH75322F_us-gaap_CommonStockVotingRights"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockVotingRights" xml:lang="en-US"> Common Stock, Voting Rights </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockVotingRights" xml:lang="en-US"> Voting rights description </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DividendsCommonStockCash"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DividendsCommonStockCash" xml:lang="en-US"> Dividends, Common Stock, Cash </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DividendsCommonStockCash" xml:lang="en-US"> Dividends paid </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DividendsCommonStockCash" xlink:to="lab_141438H6KL791K10I358_us-gaap_DividendsCommonStockCash"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockDividendsPerShareCashPaid" xlink:label="loc_350FKH75322F_us-gaap_CommonStockDividendsPerShareCashPaid"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockDividendsPerShareCashPaid" xml:lang="en-US"> Common Stock, Dividends, Per Share, Cash Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CommonStockDividendsPerShareCashPaid" xml:lang="en-US"> Dividends paid per share in cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CommonStockDividendsPerShareCashPaid" xlink:to="lab_572HMJ97544H_us-gaap_CommonStockDividendsPerShareCashPaid"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPayableAmountPerShare" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DividendsPayableAmountPerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DividendsPayableAmountPerShare" xml:lang="en-US"> Dividends Payable, Amount Per Share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DividendsPayableAmountPerShare" xml:lang="en-US"> Common stock dividends declared </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DividendsPayableAmountPerShare" xlink:to="lab_141438H6KL791K10I358_us-gaap_DividendsPayableAmountPerShare"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xlink:label="loc_350FKH75322F_us-gaap_DividendPayableDateToBePaidDayMonthAndYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xml:lang="en-US"> Dividends Payable, Date to be Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xml:lang="en-US"> Paid date of declared dividend </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xlink:to="lab_572HMJ97544H_us-gaap_DividendPayableDateToBePaidDayMonthAndYear"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xml:lang="en-US"> Dividends Payable, Date of Record </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xml:lang="en-US"> Record date of declared dividend </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xlink:to="lab_141438H6KL791K10I358_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued" xlink:label="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued" xml:lang="en-US"> Stock Issued During Period, Shares, Treasury Stock Reissued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued" xml:lang="en-US"> Treasury shares of common stock sold </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued" xlink:to="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued" xlink:label="loc_929216F4IJ579I98G136_idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued" xml:lang="en-US"> Stock Issued During Period Price Per Share For Treasury Stock Reissued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued" xml:lang="en-US"> Closing price of Class B common stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued" xml:lang="en-US"> Stock issued during period price per share for treasury stock reissued. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued" xml:lang="en-US"> Closing price of Class B common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued" xlink:to="lab_141438H6KL791K10I358_idt_StockIssuedDuringPeriodPricePerShareForTreasuryStockReissued"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockToBeIssuedSharesNewIssues" xlink:label="loc_350FKH75322F_idt_StockToBeIssuedSharesNewIssues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_StockToBeIssuedSharesNewIssues" xml:lang="en-US"> Stock To Be Issued Shares New Issues </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_StockToBeIssuedSharesNewIssues" xml:lang="en-US"> Class B common stock shares purchased options </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_StockToBeIssuedSharesNewIssues" xml:lang="en-US"> Stock to be issued shares new issues. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_StockToBeIssuedSharesNewIssues" xlink:to="lab_572HMJ97544H_idt_StockToBeIssuedSharesNewIssues"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharesIssuedPricePerShare" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SharesIssuedPricePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharesIssuedPricePerShare" xml:lang="en-US"> Shares Issued, Price Per Share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharesIssuedPricePerShare" xml:lang="en-US"> Options exercise price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SharesIssuedPricePerShare" xlink:to="lab_141438H6KL791K10I358_us-gaap_SharesIssuedPricePerShare"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate" xml:lang="en-US"> Options expire date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xml:lang="en-US"> Number of shares underlying options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US"> Stock Issued During Period, Shares, New Issues </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US"> Stock issued for stock option exercises </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharePrice" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SharePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharePrice" xml:lang="en-US"> Share Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharePrice" xml:lang="en-US"> Share price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SharePrice" xlink:to="lab_141438H6KL791K10I358_us-gaap_SharePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" xlink:label="loc_350FKH75322F_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" xml:lang="en-US"> Stock Repurchase Program, Number of Shares Authorized to be Repurchased </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" xml:lang="en-US"> Restricted Class B common stock purchased from employees, shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased" xlink:to="lab_572HMJ97544H_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:label="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xml:lang="en-US"> Treasury Stock Acquired, Average Cost Per Share </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xml:lang="en-US"> Closing price of Class B common stock </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xml:lang="en-US"> Purchase price per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:to="lab_141438H6KL791K10I358_us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_350FKH75322F_us-gaap_TreasuryStockSharesAcquired"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_TreasuryStockSharesAcquired" xml:lang="en-US"> Treasury Stock, Shares, Acquired </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_TreasuryStockSharesAcquired" xml:lang="en-US"> Class B common stock shares repurchased </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_TreasuryStockSharesAcquired" xlink:to="lab_572HMJ97544H_us-gaap_TreasuryStockSharesAcquired"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockValueAcquiredCostMethod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockValueAcquiredCostMethod" xml:lang="en-US"> Treasury Stock, Value, Acquired, Cost Method </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_TreasuryStockValueAcquiredCostMethod" xml:lang="en-US"> Aggregate purchase price of shares repurchased </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:to="lab_141438H6KL791K10I358_us-gaap_TreasuryStockValueAcquiredCostMethod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued" xlink:label="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued" xml:lang="en-US"> Stock Issued During Period, Value, Treasury Stock Reissued </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued" xml:lang="en-US"> Aggregate consideration </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued" xlink:to="lab_572HMJ97544H_us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased" xml:lang="en-US"> Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased" xml:lang="en-US"> Stock repurchase program, remaining number of shares authorized to be repurchased </label>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockIssuedDuringPeriodPercentageNewIssues" xlink:label="loc_350FKH75322F_idt_StockIssuedDuringPeriodPercentageNewIssues"/>
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<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromSaleOfInterestInCorporateUnitInterCompanyAmountPaid" xlink:label="loc_929216F4IJ579I98G136_idt_ProceedsFromSaleOfInterestInCorporateUnitInterCompanyAmountPaid"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInCorporateUnitInterCompanyAmountPaid" xml:lang="en-US"> Proceeds From Sale Of Interest In Corporate Unit Inter Company Amount Paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInCorporateUnitInterCompanyAmountPaid" xml:lang="en-US"> Proceeds from sale of interest in corporate unit intercompany amount paid </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInCorporateUnitInterCompanyAmountPaid" xml:lang="en-US"> Proceeds from sale of interest in corporate unit intercompany amount paid. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ProceedsFromSaleOfInterestInCorporateUnitInterCompanyAmountPaid" xlink:to="lab_141438H6KL791K10I358_idt_ProceedsFromSaleOfInterestInCorporateUnitInterCompanyAmountPaid"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ProceedsFromSaleOfInterestInCorporateUnitTotalReceived" xlink:label="loc_350FKH75322F_idt_ProceedsFromSaleOfInterestInCorporateUnitTotalReceived"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInCorporateUnitTotalReceived" xml:lang="en-US"> Proceeds From Sale Of Interest In Corporate Unit Total Received </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInCorporateUnitTotalReceived" xml:lang="en-US"> Proceeds from sale of interest in corporate unit total received </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInCorporateUnitTotalReceived" xml:lang="en-US"> Proceeds from sale of interest in corporate unit total received. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ProceedsFromSaleOfInterestInCorporateUnitTotalReceived" xlink:to="lab_572HMJ97544H_idt_ProceedsFromSaleOfInterestInCorporateUnitTotalReceived"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xml:lang="en-US"> ASSUMPTIONS </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US"> Average risk-free interest rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xml:lang="en-US"> Expected dividend yield </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US"> Expected volatility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xml:lang="en-US"> Expected term </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="lab_141438H6KL791K10I358_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xlink:label="loc_350FKH75322F_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xml:lang="en-US"> Weighted-average grant date fair value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xlink:to="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US"> Beginning balance, Outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xml:lang="en-US"> Ending balance, OUTSTANDING </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xml:lang="en-US"> Stock issued for stock option exercises </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xml:lang="en-US"> Option granted to purchase common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xml:lang="en-US"> Exercised </label>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="lab_141438H6KL791K10I358_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US"> Cancelled / Forfeited </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US"> Cancelled / Forfeited </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xml:lang="en-US"> Ending balance, EXERCISABLE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US"> Beginning balance, Outstanding, Weighted-Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US"> Beginning balance, Outstanding, Weighted-Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xml:lang="en-US"> Ending balance, OUTSTANDING, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xml:lang="en-US"> Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xml:lang="en-US"> Granted, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xml:lang="en-US"> Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xml:lang="en-US"> Exercised, Weighted-Average Exercise Price </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xml:lang="en-US"> Cancelled / Forfeited, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US"> Options exercise price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US"> Ending balance, EXERCISABLE, Weighted-Average Exercise Price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/zeroTerseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xml:lang="en-US"> Stock options, exercise price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_929216F4IJ579I98G136_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xml:lang="en-US"> Weighted-Average Remaining Contractual Term, OUTSTANDING </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="lab_141438H6KL791K10I358_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_350FKH75322F_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xml:lang="en-US"> Weighted-Average Remaining Contractual Term, EXERCISABLE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xml:lang="en-US"> Aggregate Intrinsic Value, OUTSTANDING </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:label="loc_350FKH75322F_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xml:lang="en-US"> Aggregate Intrinsic Value, EXERCISABLE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:to="lab_572HMJ97544H_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xml:lang="en-US"> Number of Non-vested Shares, Ending Balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xml:lang="en-US"> Number of Non-vested Shares, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US"> Number of Non-vested Shares, Vested </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xml:lang="en-US"> Number of Non-vested Shares, Vested </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US"> Number of Non-vested Shares, Forfeited </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xml:lang="en-US"> Number of Non-vested Shares, Forfeited </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US"> Weighted- Average Grant- Date Fair Value, Beginning balance </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xml:lang="en-US"> Weighted- Average Grant- Date Fair Value, Ending balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US"> Weighted- Average Grant- Date Fair Value, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value </label>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
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<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xml:lang="en-US"> Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_350FKH75322F_us-gaap_PlanNameAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PlanNameAxis" xml:lang="en-US"> Plan Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PlanNameAxis" xlink:to="lab_572HMJ97544H_us-gaap_PlanNameAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PlanNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PlanNameDomain" xml:lang="en-US"> Plan Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PlanNameDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_PlanNameDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_TwoThousandFifiteenStockOptionAndIncentivePlanMember" xlink:label="loc_350FKH75322F_idt_TwoThousandFifiteenStockOptionAndIncentivePlanMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_TwoThousandFifiteenStockOptionAndIncentivePlanMember" xml:lang="en-US"> Two Thousand Fifiteen Stock Option And Incentive Plan [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_TwoThousandFifiteenStockOptionAndIncentivePlanMember" xml:lang="en-US"> 2015 Stock Option and Incentive Plan [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_TwoThousandFifiteenStockOptionAndIncentivePlanMember" xml:lang="en-US"> 2015 Stock Option and Incentive Plan. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_TwoThousandFifiteenStockOptionAndIncentivePlanMember" xlink:to="lab_572HMJ97544H_idt_TwoThousandFifiteenStockOptionAndIncentivePlanMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AwardTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AwardTypeAxis" xml:lang="en-US"> Award Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AwardTypeAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_AwardTypeAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xml:lang="en-US"> Equity Award [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockOptionsMember" xlink:label="loc_929216F4IJ579I98G136_idt_StockOptionsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_StockOptionsMember" xml:lang="en-US"> Stock Options [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_StockOptionsMember" xml:lang="en-US"> Stock Options [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_StockOptionsMember" xml:lang="en-US"> Stock options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_StockOptionsMember" xlink:to="lab_141438H6KL791K10I358_idt_StockOptionsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_350FKH75322F_us-gaap_RestrictedStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RestrictedStockMember" xml:lang="en-US"> Restricted Stock [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_RestrictedStockMember" xml:lang="en-US"> Restricted Stock [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RestrictedStockMember" xlink:to="lab_572HMJ97544H_us-gaap_RestrictedStockMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_StockBasedCompensationTextualAbstract" xlink:label="loc_350FKH75322F_idt_StockBasedCompensationTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_StockBasedCompensationTextualAbstract" xml:lang="en-US"> Stock Based Compensation Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_StockBasedCompensationTextualAbstract" xml:lang="en-US"> Stock-Based Compensation (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_StockBasedCompensationTextualAbstract" xlink:to="lab_572HMJ97544H_idt_StockBasedCompensationTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xml:lang="en-US"> Number of additional shares authorized </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xml:lang="en-US"> Additional shares available stock option incentive plan for grants </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xml:lang="en-US"> Shares of common stock reserved for award under 2015 stock option and incentive plan </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US"> Shares of common stock available for future grants </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xml:lang="en-US"> Total intrinsic value of options exercised during the period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xml:lang="en-US"> Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xml:lang="en-US"> Total unrecognized compensation cost </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:to="lab_141438H6KL791K10I358_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_350FKH75322F_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xml:lang="en-US"> Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xml:lang="en-US"> Non-vested stock options, weighted-average period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="lab_572HMJ97544H_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US"> Fair value of options on grant date </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xml:lang="en-US"> Fair value of options, Grant </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_141438H6KL791K10I358_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ShareBasedCompensationArrangementByShareBasedPaymentAwardModificationExercisePricePerShareDecrease" xlink:label="loc_350FKH75322F_idt_ShareBasedCompensationArrangementByShareBasedPaymentAwardModificationExercisePricePerShareDecrease"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ShareBasedCompensationArrangementByShareBasedPaymentAwardModificationExercisePricePerShareDecrease" xml:lang="en-US"> Share Based Compensation Arrangement By Share Based Payment Award Modification Exercise Price Per Share Decrease </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_ShareBasedCompensationArrangementByShareBasedPaymentAwardModificationExercisePricePerShareDecrease" xml:lang="en-US"> Reduction of exercise price </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ShareBasedCompensationArrangementByShareBasedPaymentAwardModificationExercisePricePerShareDecrease" xml:lang="en-US"> Share based compensation arrangement by share based payment award modification exercise price per share decrease. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ShareBasedCompensationArrangementByShareBasedPaymentAwardModificationExercisePricePerShareDecrease" xlink:to="lab_572HMJ97544H_idt_ShareBasedCompensationArrangementByShareBasedPaymentAwardModificationExercisePricePerShareDecrease"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xml:lang="en-US"> Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xml:lang="en-US"> Total unrecognized non-vested stock-based compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:to="lab_141438H6KL791K10I358_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xml:lang="en-US"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xml:lang="en-US"> Total grant date fair value of shares vested </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:to="lab_572HMJ97544H_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SharesSubjectToRepurchaseRightNumberExpireYearOne" xlink:label="loc_929216F4IJ579I98G136_idt_SharesSubjectToRepurchaseRightNumberExpireYearOne"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearOne" xml:lang="en-US"> Shares Subject To Repurchase Right Number Expire Year One </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearOne" xml:lang="en-US"> Repurchase right number of shares year 1 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearOne" xml:lang="en-US"> Repurchase right number of shares year 1. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_SharesSubjectToRepurchaseRightNumberExpireYearOne" xlink:to="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearOne"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SharesSubjectToRepurchaseRightNumberExpireYearTwo" xlink:label="loc_350FKH75322F_idt_SharesSubjectToRepurchaseRightNumberExpireYearTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_SharesSubjectToRepurchaseRightNumberExpireYearTwo" xml:lang="en-US"> Shares Subject To Repurchase Right Number Expire Year Two </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_SharesSubjectToRepurchaseRightNumberExpireYearTwo" xml:lang="en-US"> Repurchase right number of shares year 2 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_SharesSubjectToRepurchaseRightNumberExpireYearTwo" xml:lang="en-US"> Shares subject to repurchase right number expire Year 2. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_SharesSubjectToRepurchaseRightNumberExpireYearTwo" xlink:to="lab_572HMJ97544H_idt_SharesSubjectToRepurchaseRightNumberExpireYearTwo"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_SharesSubjectToRepurchaseRightNumberExpireYearThree" xlink:label="loc_929216F4IJ579I98G136_idt_SharesSubjectToRepurchaseRightNumberExpireYearThree"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearThree" xml:lang="en-US"> Shares Subject To Repurchase Right Number Expire Year Three </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearThree" xml:lang="en-US"> Repurchase right number of shares year 3 </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearThree" xml:lang="en-US"> Repurchase right number of shares year 1. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_SharesSubjectToRepurchaseRightNumberExpireYearThree" xlink:to="lab_141438H6KL791K10I358_idt_SharesSubjectToRepurchaseRightNumberExpireYearThree"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:to="lab_572HMJ97544H_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xml:lang="en-US"> Accumulated Net Unrealized Investment Gain (Loss) [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xml:lang="en-US"> Unrealized gain (loss) on available-for-sale securities [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember" xlink:label="loc_350FKH75322F_us-gaap_AccumulatedTranslationAdjustmentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedTranslationAdjustmentMember" xml:lang="en-US"> Accumulated Translation Adjustment [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccumulatedTranslationAdjustmentMember" xml:lang="en-US"> Foreign currency translation [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccumulatedTranslationAdjustmentMember" xlink:to="lab_572HMJ97544H_us-gaap_AccumulatedTranslationAdjustmentMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AccumulatedOtherComprehensiveMember" xlink:label="loc_929216F4IJ579I98G136_idt_AccumulatedOtherComprehensiveMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_AccumulatedOtherComprehensiveMember" xml:lang="en-US"> Accumulated Other Comprehensive [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_AccumulatedOtherComprehensiveMember" xml:lang="en-US"> Accumulated other comprehensive income (loss) [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_AccumulatedOtherComprehensiveMember" xml:lang="en-US"> Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_AccumulatedOtherComprehensiveMember" xlink:to="lab_141438H6KL791K10I358_idt_AccumulatedOtherComprehensiveMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_350FKH75322F_us-gaap_IncomeStatementLocationAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeStatementLocationAxis" xml:lang="en-US"> Income Statement Location [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncomeStatementLocationAxis" xlink:to="lab_572HMJ97544H_us-gaap_IncomeStatementLocationAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_IncomeStatementLocationDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_IncomeStatementLocationDomain" xml:lang="en-US"> Income Statement Location [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_IncomeStatementLocationDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_IncomeStatementLocationDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseMember" xlink:label="loc_350FKH75322F_us-gaap_OtherNonoperatingIncomeExpenseMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OtherNonoperatingIncomeExpenseMember" xml:lang="en-US"> Other Nonoperating Income (Expense) [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherNonoperatingIncomeExpenseMember" xml:lang="en-US"> Other income (expense), net [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OtherNonoperatingIncomeExpenseMember" xlink:to="lab_572HMJ97544H_us-gaap_OtherNonoperatingIncomeExpenseMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_929216F4IJ579I98G136_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Line Items] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss) [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:to="lab_141438H6KL791K10I358_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfAccumulatedBalancesForEachClassificationOfOtherComprehensiveIncomeLossAbstract" xlink:label="loc_350FKH75322F_idt_ScheduleOfAccumulatedBalancesForEachClassificationOfOtherComprehensiveIncomeLossAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ScheduleOfAccumulatedBalancesForEachClassificationOfOtherComprehensiveIncomeLossAbstract" xml:lang="en-US"> Schedule Of Accumulated Balances For Each Classification Of Other Comprehensive Income Loss [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ScheduleOfAccumulatedBalancesForEachClassificationOfOtherComprehensiveIncomeLossAbstract" xml:lang="en-US"> Schedule of accumulated balances for each classification of other comprehensive income (loss) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ScheduleOfAccumulatedBalancesForEachClassificationOfOtherComprehensiveIncomeLossAbstract" xlink:to="lab_572HMJ97544H_idt_ScheduleOfAccumulatedBalancesForEachClassificationOfOtherComprehensiveIncomeLossAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ShareholdersEquityNoteSpinOffTransaction" xlink:label="loc_929216F4IJ579I98G136_idt_ShareholdersEquityNoteSpinOffTransaction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ShareholdersEquityNoteSpinOffTransaction" xml:lang="en-US"> Shareholders Equity Note Spin Off Transaction </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ShareholdersEquityNoteSpinOffTransaction" xml:lang="en-US"> Zedge Spin-Off </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ShareholdersEquityNoteSpinOffTransaction" xml:lang="en-US"> The change in equity as a result of a spin-off transaction (a regular or reverse spin-off) which is based on the recorded amounts. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ShareholdersEquityNoteSpinOffTransaction" xlink:to="lab_141438H6KL791K10I358_idt_ShareholdersEquityNoteSpinOffTransaction"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:label="loc_350FKH75322F_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xml:lang="en-US"> Other Comprehensive Income (Loss), before Reclassifications, Net of Tax </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xml:lang="en-US"> Other comprehensive income (loss) attributable to IDT Corporation before reclassification </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:to="lab_572HMJ97544H_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xml:lang="en-US"> Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xml:lang="en-US"> Less: reclassification for gain included in net income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:to="lab_141438H6KL791K10I358_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MarketableSecuritiesMember" xlink:label="loc_350FKH75322F_idt_MarketableSecuritiesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_MarketableSecuritiesMember" xml:lang="en-US"> Marketable Securities [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_MarketableSecuritiesMember" xlink:to="lab_572HMJ97544H_idt_MarketableSecuritiesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xml:lang="en-US"> Year ending July 31: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due, Next Twelve Months </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xml:lang="en-US"> 2018 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Two Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xml:lang="en-US"> 2019 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Three Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xml:lang="en-US"> 2020 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Four Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xml:lang="en-US"> 2021 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due in Five Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xml:lang="en-US"> 2022 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xml:lang="en-US"> Operating Leases, Future Minimum Payments, Due Thereafter </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xml:lang="en-US"> Thereafter </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US"> Operating Leases, Future Minimum Payments Due </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US"> Total payments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xml:lang="en-US"> Total payments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableAbstract" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableAbstract" xml:lang="en-US"> Year ending July 31: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xml:lang="en-US"> 2018 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Two Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xml:lang="en-US"> 2019 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Three Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xml:lang="en-US"> 2020 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Four Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xml:lang="en-US"> 2021 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, in Five Years </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xml:lang="en-US"> 2022 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable, Thereafter </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter" xml:lang="en-US"> Thereafter </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable" xml:lang="en-US"> Operating Leases, Future Minimum Payments Receivable </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable" xml:lang="en-US"> Total minimum future rentals </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNetAbstract" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNetAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNetAbstract" xml:lang="en-US"> Property Subject to or Available for Operating Lease, Net [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNetAbstract" xml:lang="en-US"> Aggregate carrying value of the Company's land, building and improvements in New Jersey was as follows: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNetAbstract" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNetAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross" xlink:label="loc_350FKH75322F_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross" xml:lang="en-US"> Property Subject to or Available for Operating Lease, Gross </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross" xml:lang="en-US"> Land, building and improvements </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross" xlink:to="lab_572HMJ97544H_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseGross"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" xml:lang="en-US"> Property Subject to or Available for Operating Lease, Accumulated Depreciation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" xml:lang="en-US"> Less accumulated depreciation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation" xlink:to="lab_141438H6KL791K10I358_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet" xlink:label="loc_350FKH75322F_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet" xml:lang="en-US"> Property Subject to or Available for Operating Lease, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="lab_572HMJ97544H_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet" xml:lang="en-US"> Net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet" xlink:to="lab_572HMJ97544H_us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNet"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossContingenciesTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LossContingenciesTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LossContingenciesTable" xml:lang="en-US"> Loss Contingencies [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LossContingenciesTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_LossContingenciesTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_350FKH75322F_us-gaap_StatementScenarioAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_StatementScenarioAxis" xml:lang="en-US"> Scenario [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_StatementScenarioAxis" xlink:to="lab_572HMJ97544H_us-gaap_StatementScenarioAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScenarioUnspecifiedDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScenarioUnspecifiedDomain" xml:lang="en-US"> Scenario, Unspecified [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScenarioUnspecifiedDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScenarioUnspecifiedDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IdtFinancialServicesLtdMember" xlink:label="loc_350FKH75322F_idt_IdtFinancialServicesLtdMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_IdtFinancialServicesLtdMember" xml:lang="en-US"> Idt Financial Services Ltd [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_IdtFinancialServicesLtdMember" xml:lang="en-US"> IDT Financial Services Ltd. [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_IdtFinancialServicesLtdMember" xlink:to="lab_572HMJ97544H_idt_IdtFinancialServicesLtdMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IdtPaymentServicesAndIdtFinancialServicesLtdMember" xlink:label="loc_929216F4IJ579I98G136_idt_IdtPaymentServicesAndIdtFinancialServicesLtdMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_IdtPaymentServicesAndIdtFinancialServicesLtdMember" xml:lang="en-US"> Idt Payment Services And Idt Financial Services Ltd [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_IdtPaymentServicesAndIdtFinancialServicesLtdMember" xml:lang="en-US"> IDT Payment Services and IDT Financial Services Ltd. [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_IdtPaymentServicesAndIdtFinancialServicesLtdMember" xml:lang="en-US"> Idt payment services and idt financial services ltd. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_IdtPaymentServicesAndIdtFinancialServicesLtdMember" xlink:to="lab_141438H6KL791K10I358_idt_IdtPaymentServicesAndIdtFinancialServicesLtdMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="loc_350FKH75322F_us-gaap_LossContingenciesLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LossContingenciesLineItems" xml:lang="en-US"> Loss Contingencies [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LossContingenciesLineItems" xlink:to="lab_572HMJ97544H_us-gaap_LossContingenciesLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_CommitmentsAndContingenciesTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_CommitmentsAndContingenciesTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_CommitmentsAndContingenciesTextualAbstract" xml:lang="en-US"> Commitments And Contingencies Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_idt_CommitmentsAndContingenciesTextualAbstract" xml:lang="en-US"> Commitments and Contingencies (Textual) </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_CommitmentsAndContingenciesTextualAbstract" xml:lang="en-US"> Commitments and contingencies. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_CommitmentsAndContingenciesTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_CommitmentsAndContingenciesTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_350FKH75322F_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xml:lang="en-US"> Accrued Liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xml:lang="en-US"> Accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xlink:to="lab_572HMJ97544H_us-gaap_AccruedLiabilitiesCurrentAndNoncurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PurchaseObligation" xlink:label="loc_929216F4IJ579I98G136_us-gaap_PurchaseObligation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_PurchaseObligation" xml:lang="en-US"> Purchase Obligation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_PurchaseObligation" xml:lang="en-US"> Purchase commitment of company </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_PurchaseObligation" xlink:to="lab_141438H6KL791K10I358_us-gaap_PurchaseObligation"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PerformanceBondsOutstanding" xlink:label="loc_350FKH75322F_idt_PerformanceBondsOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_PerformanceBondsOutstanding" xml:lang="en-US"> Performance Bonds Outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_PerformanceBondsOutstanding" xml:lang="en-US"> Performance bonds outstanding </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_PerformanceBondsOutstanding" xml:lang="en-US"> In certain circumstances, the company is required to provide performance bonds in connection with its contractual commitments. Company has indemnified the surety for any expenses paid out under these performance bonds. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_PerformanceBondsOutstanding" xlink:to="lab_572HMJ97544H_idt_PerformanceBondsOutstanding"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ConnectivityLeaseRentalExpense" xlink:label="loc_929216F4IJ579I98G136_idt_ConnectivityLeaseRentalExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ConnectivityLeaseRentalExpense" xml:lang="en-US"> Connectivity lease rental expense </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ConnectivityLeaseRentalExpense" xml:lang="en-US"> The amount of expenses on connectivity charges on operating leases. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ConnectivityLeaseRentalExpense" xlink:to="lab_141438H6KL791K10I358_idt_ConnectivityLeaseRentalExpense"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_350FKH75322F_us-gaap_OperatingLeasesRentExpenseNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesRentExpenseNet" xml:lang="en-US"> Operating Leases, Rent Expense, Net </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_OperatingLeasesRentExpenseNet" xml:lang="en-US"> Rental expense under operating leases </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_OperatingLeasesRentExpenseNet" xlink:to="lab_572HMJ97544H_us-gaap_OperatingLeasesRentExpenseNet"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ScheduleOfChangesInCompanysEstimatedLiabilityAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_ScheduleOfChangesInCompanysEstimatedLiabilityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfChangesInCompanysEstimatedLiabilityAbstract" xml:lang="en-US"> Schedule Of Changes In Companys Estimated Liability [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ScheduleOfChangesInCompanysEstimatedLiabilityAbstract" xml:lang="en-US"> Estimated liability to straight path included in other current liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ScheduleOfChangesInCompanysEstimatedLiabilityAbstract" xlink:to="lab_141438H6KL791K10I358_idt_ScheduleOfChangesInCompanysEstimatedLiabilityAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities" xlink:label="loc_350FKH75322F_idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities" xml:lang="en-US"> Change In Balance Of Estimated Liability Included In Other Current Liabilities </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities" xml:lang="en-US"> Balance at beginning of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities" xml:lang="en-US"> Balance at end of year </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities" xml:lang="en-US"> Change in balance of estimated liability included in other current liabilities. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities" xlink:to="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityIncludedInOtherCurrentLiabilities"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ChangeInBalanceOfEstimatedLiabilityAdditionalLiability" xlink:label="loc_929216F4IJ579I98G136_idt_ChangeInBalanceOfEstimatedLiabilityAdditionalLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityAdditionalLiability" xml:lang="en-US"> Change In Balance Of Estimated Liability Additional Liability </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityAdditionalLiability" xml:lang="en-US"> Additional liability </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityAdditionalLiability" xml:lang="en-US"> Change in balance of estimated liability additional liability. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ChangeInBalanceOfEstimatedLiabilityAdditionalLiability" xlink:to="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityAdditionalLiability"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ChangeInBalanceOfEstimatedLiabilityAdjustments" xlink:label="loc_350FKH75322F_idt_ChangeInBalanceOfEstimatedLiabilityAdjustments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityAdjustments" xml:lang="en-US"> Change In Balance Of Estimated Liability Adjustments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityAdjustments" xml:lang="en-US"> Adjustments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityAdjustments" xml:lang="en-US"> Change in balance of estimated liability adjustments. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_ChangeInBalanceOfEstimatedLiabilityAdjustments" xlink:to="lab_572HMJ97544H_idt_ChangeInBalanceOfEstimatedLiabilityAdjustments"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ChangeInBalanceOfEstimatedLiabilityPayments" xlink:label="loc_929216F4IJ579I98G136_idt_ChangeInBalanceOfEstimatedLiabilityPayments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityPayments" xml:lang="en-US"> Change In Balance Of Estimated Liability Payments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityPayments" xml:lang="en-US"> Payments </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityPayments" xml:lang="en-US"> Change in balance of estimated liability payments. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ChangeInBalanceOfEstimatedLiabilityPayments" xlink:to="lab_141438H6KL791K10I358_idt_ChangeInBalanceOfEstimatedLiabilityPayments"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LitigationCaseAxis" xlink:label="loc_350FKH75322F_us-gaap_LitigationCaseAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_LitigationCaseAxis" xml:lang="en-US"> Litigation Case [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_LitigationCaseAxis" xlink:to="lab_572HMJ97544H_us-gaap_LitigationCaseAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LitigationCaseTypeDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_LitigationCaseTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_LitigationCaseTypeDomain" xml:lang="en-US"> Litigation Case [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_LitigationCaseTypeDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_LitigationCaseTypeDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_GenieAndSubsidiariesMember" xlink:label="loc_350FKH75322F_idt_GenieAndSubsidiariesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_GenieAndSubsidiariesMember" xml:lang="en-US"> Genie And Subsidiaries [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_GenieAndSubsidiariesMember" xml:lang="en-US"> Genie and Subsidiaries [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_GenieAndSubsidiariesMember" xml:lang="en-US"> Genie and subsidiaries. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_GenieAndSubsidiariesMember" xlink:to="lab_572HMJ97544H_idt_GenieAndSubsidiariesMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_MasonAndCompanyMember" xlink:label="loc_929216F4IJ579I98G136_idt_MasonAndCompanyMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_MasonAndCompanyMember" xml:lang="en-US"> Mason And Company [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_MasonAndCompanyMember" xml:lang="en-US"> Mason and Company [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_MasonAndCompanyMember" xml:lang="en-US"> Mason and company. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_MasonAndCompanyMember" xlink:to="lab_141438H6KL791K10I358_idt_MasonAndCompanyMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_JonasMediaGroupMember" xlink:label="loc_350FKH75322F_idt_JonasMediaGroupMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_JonasMediaGroupMember" xml:lang="en-US"> Jonas Media Group [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_JonasMediaGroupMember" xml:lang="en-US"> Jonas Media Group [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_JonasMediaGroupMember" xlink:to="lab_572HMJ97544H_idt_JonasMediaGroupMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_IgmBrokerageCorpMember" xlink:label="loc_929216F4IJ579I98G136_idt_IgmBrokerageCorpMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_IgmBrokerageCorpMember" xml:lang="en-US"> Igm Brokerage Corp [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_IgmBrokerageCorpMember" xml:lang="en-US"> IGM Brokerage Corp. [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_IgmBrokerageCorpMember" xml:lang="en-US"> Igm brokerage corp. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_IgmBrokerageCorpMember" xlink:to="lab_141438H6KL791K10I358_idt_IgmBrokerageCorpMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_HowardJonasMember" xlink:label="loc_350FKH75322F_idt_HowardJonasMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_HowardJonasMember" xml:lang="en-US"> Howard Jonas [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_HowardJonasMember" xml:lang="en-US"> Howard Jonas [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_HowardJonasMember" xlink:to="lab_572HMJ97544H_idt_HowardJonasMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RafaelPharmaceuticalsMember" xlink:label="loc_929216F4IJ579I98G136_idt_RafaelPharmaceuticalsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RafaelPharmaceuticalsMember" xml:lang="en-US"> Rafael Pharmaceuticals [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RafaelPharmaceuticalsMember" xml:lang="en-US"> Rafael Pharmaceuticals, Inc. [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RafaelPharmaceuticalsMember" xlink:to="lab_141438H6KL791K10I358_idt_RafaelPharmaceuticalsMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:label="loc_350FKH75322F_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xml:lang="en-US"> Disposal Group Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="lab_572HMJ97544H_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xml:lang="en-US"> Disposal Group Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionsTextualAbstract" xlink:label="loc_350FKH75322F_idt_RelatedPartyTransactionsTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionsTextualAbstract" xml:lang="en-US"> Related Party Transactions Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionsTextualAbstract" xml:lang="en-US"> Related Party Transactions (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RelatedPartyTransactionsTextualAbstract" xlink:to="lab_572HMJ97544H_idt_RelatedPartyTransactionsTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DueFromOtherRelatedPartiesCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DueFromOtherRelatedPartiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DueFromOtherRelatedPartiesCurrent" xml:lang="en-US"> Due from Other Related Parties, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DueFromOtherRelatedPartiesCurrent" xml:lang="en-US"> Receivable from subsidiaries included in other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DueFromOtherRelatedPartiesCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DueFromOtherRelatedPartiesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpensesRelatedParty" xlink:label="loc_350FKH75322F_us-gaap_CostsAndExpensesRelatedParty"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_CostsAndExpensesRelatedParty" xml:lang="en-US"> Costs and Expenses, Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_CostsAndExpensesRelatedParty" xml:lang="en-US"> Cost and expenses related to services </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_CostsAndExpensesRelatedParty" xlink:to="lab_572HMJ97544H_us-gaap_CostsAndExpensesRelatedParty"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionBillingsToRelatedPartyForServices" xlink:label="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionBillingsToRelatedPartyForServices"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionBillingsToRelatedPartyForServices" xml:lang="en-US"> Related Party Transaction Billings To Related Party For Services </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionBillingsToRelatedPartyForServices" xml:lang="en-US"> Rent received for office space, connectivity and other services </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionBillingsToRelatedPartyForServices" xml:lang="en-US"> Related party transaction billings to related party for services. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionBillingsToRelatedPartyForServices" xlink:to="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionBillingsToRelatedPartyForServices"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:label="loc_350FKH75322F_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xml:lang="en-US"> Related Party Transaction, Expenses from Transactions with Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xml:lang="en-US"> Commissions and fees from payment by company </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:to="lab_572HMJ97544H_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionAggregatePaymentMadeToRelatedParty" xlink:label="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionAggregatePaymentMadeToRelatedParty"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionAggregatePaymentMadeToRelatedParty" xml:lang="en-US"> Related Party Transaction Aggregate Payment Made To Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionAggregatePaymentMadeToRelatedParty" xml:lang="en-US"> Insurance payment made by company </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionAggregatePaymentMadeToRelatedParty" xml:lang="en-US"> Related party transaction aggregate payment made to related party. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionAggregatePaymentMadeToRelatedParty" xlink:to="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionAggregatePaymentMadeToRelatedParty"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionLeaseAnnualRentPaymentsToRelatedParty" xlink:label="loc_350FKH75322F_idt_RelatedPartyTransactionLeaseAnnualRentPaymentsToRelatedParty"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionLeaseAnnualRentPaymentsToRelatedParty" xml:lang="en-US"> Related Party Transaction Lease Annual Rent Payments To Related Party </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionLeaseAnnualRentPaymentsToRelatedParty" xml:lang="en-US"> Annual rent payment </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionLeaseAnnualRentPaymentsToRelatedParty" xml:lang="en-US"> Related party transaction lease annual rent payments to related party. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RelatedPartyTransactionLeaseAnnualRentPaymentsToRelatedParty" xlink:to="lab_572HMJ97544H_idt_RelatedPartyTransactionLeaseAnnualRentPaymentsToRelatedParty"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesTermOfContract" xlink:label="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesTermOfContract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesTermOfContract" xml:lang="en-US"> Related Party Transaction Lessee Leasing Arrangements Operating Leases Term Of Contract </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesTermOfContract" xml:lang="en-US"> Lease period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesTermOfContract" xml:lang="en-US"> Related party transaction lessee leasing arrangements operating leases term of contract. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesTermOfContract" xlink:to="lab_141438H6KL791K10I358_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesTermOfContract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesRenewalTerm" xlink:label="loc_350FKH75322F_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesRenewalTerm"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesRenewalTerm" xml:lang="en-US"> Related Party Transaction Lessee Leasing Arrangements Operating Leases Renewal Term </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesRenewalTerm" xml:lang="en-US"> Lease renewal period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesRenewalTerm" xml:lang="en-US"> Related party transaction lessee leasing arrangements operating leases renewal term. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesRenewalTerm" xlink:to="lab_572HMJ97544H_idt_RelatedPartyTransactionLesseeLeasingArrangementsOperatingLeasesRenewalTerm"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DueFromEmployeesCurrent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DueFromEmployeesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DueFromEmployeesCurrent" xml:lang="en-US"> Due from Employees, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DueFromEmployeesCurrent" xml:lang="en-US"> Outstanding net loan receivable from employees </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DueFromEmployeesCurrent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DueFromEmployeesCurrent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DueToOfficersOrStockholdersCurrent" xlink:label="loc_350FKH75322F_us-gaap_DueToOfficersOrStockholdersCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DueToOfficersOrStockholdersCurrent" xml:lang="en-US"> Due to Officers or Stockholders, Current </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DueToOfficersOrStockholdersCurrent" xml:lang="en-US"> Payable to officer </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DueToOfficersOrStockholdersCurrent" xlink:to="lab_572HMJ97544H_us-gaap_DueToOfficersOrStockholdersCurrent"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PercentageOfTransferRightsToAdditionalInterest" xlink:label="loc_929216F4IJ579I98G136_idt_PercentageOfTransferRightsToAdditionalInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfTransferRightsToAdditionalInterest" xml:lang="en-US"> Percentage Of Transfer Rights To Additional Interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfTransferRightsToAdditionalInterest" xml:lang="en-US"> Percentage of transfer rights to additional interest </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_PercentageOfTransferRightsToAdditionalInterest" xml:lang="en-US"> Percentage of transfer rights to additional interest. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_PercentageOfTransferRightsToAdditionalInterest" xlink:to="lab_141438H6KL791K10I358_idt_PercentageOfTransferRightsToAdditionalInterest"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanTable" xlink:label="loc_350FKH75322F_us-gaap_DefinedContributionPlanTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DefinedContributionPlanTable" xml:lang="en-US"> Defined Contribution Plan [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DefinedContributionPlanTable" xlink:to="lab_572HMJ97544H_us-gaap_DefinedContributionPlanTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanNameAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_RetirementPlanNameAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_RetirementPlanNameAxis" xml:lang="en-US"> Retirement Plan Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_RetirementPlanNameAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_RetirementPlanNameAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanNameDomain" xlink:label="loc_350FKH75322F_us-gaap_RetirementPlanNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RetirementPlanNameDomain" xml:lang="en-US"> Retirement Plan Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RetirementPlanNameDomain" xlink:to="lab_572HMJ97544H_us-gaap_RetirementPlanNameDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DefinedContributionPlansMember" xlink:label="loc_929216F4IJ579I98G136_idt_DefinedContributionPlansMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DefinedContributionPlansMember" xml:lang="en-US"> Defined Contribution Plans [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DefinedContributionPlansMember" xml:lang="en-US"> 401(k) Plan [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DefinedContributionPlansMember" xlink:to="lab_141438H6KL791K10I358_idt_DefinedContributionPlansMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanDisclosureLineItems" xlink:label="loc_350FKH75322F_us-gaap_DefinedContributionPlanDisclosureLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DefinedContributionPlanDisclosureLineItems" xml:lang="en-US"> Defined Contribution Plan Disclosure [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DefinedContributionPlanDisclosureLineItems" xlink:to="lab_572HMJ97544H_us-gaap_DefinedContributionPlanDisclosureLineItems"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DefinedContributionPlansTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_DefinedContributionPlansTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_DefinedContributionPlansTextualAbstract" xml:lang="en-US"> Defined Contribution Plans Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_DefinedContributionPlansTextualAbstract" xml:lang="en-US"> Defined Contribution Plans (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_DefinedContributionPlansTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_DefinedContributionPlansTextualAbstract"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:label="loc_350FKH75322F_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xml:lang="en-US"> Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xml:lang="en-US"> Maximum percentage of participants contribution </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:to="lab_572HMJ97544H_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xml:lang="en-US"> Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xml:lang="en-US"> Percentage of discretionary matching contributions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:to="lab_141438H6KL791K10I358_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DefinedContributionPlanEmployerMatchingContributionLimitPercent" xlink:label="loc_350FKH75322F_idt_DefinedContributionPlanEmployerMatchingContributionLimitPercent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionLimitPercent" xml:lang="en-US"> Defined Contribution Plan Employer Matching Contribution Limit Percent </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionLimitPercent" xml:lang="en-US"> Defined benefit plan compensation </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionLimitPercent" xml:lang="en-US"> Defined contribution plan employer matching contribution limit percent. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DefinedContributionPlanEmployerMatchingContributionLimitPercent" xlink:to="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerMatchingContributionLimitPercent"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="loc_929216F4IJ579I98G136_us-gaap_DefinedContributionPlanCostRecognized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_DefinedContributionPlanCostRecognized" xml:lang="en-US"> Defined Contribution Plan, Cost Recognized </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_DefinedContributionPlanCostRecognized" xml:lang="en-US"> Company's cost for contributions to the plan </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_DefinedContributionPlanCostRecognized" xlink:to="lab_141438H6KL791K10I358_us-gaap_DefinedContributionPlanCostRecognized"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_DefinedContributionPlanEmployerDiscretionaryContributionVestingPeriod" xlink:label="loc_350FKH75322F_idt_DefinedContributionPlanEmployerDiscretionaryContributionVestingPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerDiscretionaryContributionVestingPeriod" xml:lang="en-US"> Defined Contribution Plan Employer Discretionary Contribution Vesting Period </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerDiscretionaryContributionVestingPeriod" xml:lang="en-US"> Employment period contributions, description </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerDiscretionaryContributionVestingPeriod" xml:lang="en-US"> Employment period contributions description. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_DefinedContributionPlanEmployerDiscretionaryContributionVestingPeriod" xlink:to="lab_572HMJ97544H_idt_DefinedContributionPlanEmployerDiscretionaryContributionVestingPeriod"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ConsolidationItemsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConsolidationItemsAxis" xml:lang="en-US"> Consolidation Items [Axis] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_ConsolidationItemsAxis" xml:lang="en-US"> Consolidation Items [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ConsolidationItemsAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_ConsolidationItemsAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationItemsDomain" xlink:label="loc_350FKH75322F_us-gaap_ConsolidationItemsDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ConsolidationItemsDomain" xml:lang="en-US"> Consolidation Items [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_ConsolidationItemsDomain" xml:lang="en-US"> Consolidation Items [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ConsolidationItemsDomain" xlink:to="lab_572HMJ97544H_us-gaap_ConsolidationItemsDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_OperatingSegmentsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingSegmentsMember" xml:lang="en-US"> Operating Segments [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_OperatingSegmentsMember" xml:lang="en-US"> Operating Segments [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_OperatingSegmentsMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_OperatingSegmentsMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_UnifiedCommunicationsAsServiceMember" xlink:label="loc_350FKH75322F_idt_UnifiedCommunicationsAsServiceMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_UnifiedCommunicationsAsServiceMember" xml:lang="en-US"> Unified Communications As Service [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_UnifiedCommunicationsAsServiceMember" xml:lang="en-US"> UCaaS [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_UnifiedCommunicationsAsServiceMember" xml:lang="en-US"> Unified Communications as a Service. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_UnifiedCommunicationsAsServiceMember" xlink:to="lab_572HMJ97544H_idt_UnifiedCommunicationsAsServiceMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ConsumerPhoneServicesMember" xlink:label="loc_929216F4IJ579I98G136_idt_ConsumerPhoneServicesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ConsumerPhoneServicesMember" xml:lang="en-US"> Consumer Phone Services [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_ConsumerPhoneServicesMember" xml:lang="en-US"> Consumer Phone Services [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_141438H6KL791K10I358_idt_ConsumerPhoneServicesMember" xml:lang="en-US"> Consumer Phone Services [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ConsumerPhoneServicesMember" xlink:to="lab_141438H6KL791K10I358_idt_ConsumerPhoneServicesMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_AllOtherMember" xlink:label="loc_350FKH75322F_idt_AllOtherMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_AllOtherMember" xml:lang="en-US"> All Other [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_idt_AllOtherMember" xml:lang="en-US"> All Other [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_AllOtherMember" xml:lang="en-US"> All Other-other [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="lab_572HMJ97544H_idt_AllOtherMember" xml:lang="en-US"> All Other [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_AllOtherMember" xlink:to="lab_572HMJ97544H_idt_AllOtherMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateMember" xlink:label="loc_929216F4IJ579I98G136_us-gaap_CorporateMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_CorporateMember" xml:lang="en-US"> Corporate Segment [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CorporateMember" xml:lang="en-US"> Corporate [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_CorporateMember" xml:lang="en-US"> Corporate-loss related to settlement (b) [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_CorporateMember" xlink:to="lab_141438H6KL791K10I358_us-gaap_CorporateMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfInterestInProjects" xlink:label="loc_350FKH75322F_us-gaap_GainLossOnSaleOfInterestInProjects"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_GainLossOnSaleOfInterestInProjects" xml:lang="en-US"> Gain (Loss) on Sale of Interest in Projects </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_GainLossOnSaleOfInterestInProjects" xml:lang="en-US"> Sale of its member interest in Visa Europe. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_us-gaap_GainLossOnSaleOfInterestInProjects" xml:lang="en-US"> Adjustment to gain on sale of member interest in Visa Europe Ltd. </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/definitionGuidance" xlink:label="lab_572HMJ97544H_us-gaap_GainLossOnSaleOfInterestInProjects" xml:lang="en-US"> Gain on sale of member interest in Visa Europe Ltd. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_GainLossOnSaleOfInterestInProjects" xlink:to="lab_572HMJ97544H_us-gaap_GainLossOnSaleOfInterestInProjects"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xml:lang="en-US"> Revenue from External Customers by Products and Services [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xlink:to="lab_141438H6KL791K10I358_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductOrServiceAxis" xlink:label="loc_350FKH75322F_us-gaap_ProductOrServiceAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ProductOrServiceAxis" xml:lang="en-US"> Products and Services [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ProductOrServiceAxis" xlink:to="lab_572HMJ97544H_us-gaap_ProductOrServiceAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProductsAndServicesDomain" xlink:label="loc_929216F4IJ579I98G136_us-gaap_ProductsAndServicesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_ProductsAndServicesDomain" xml:lang="en-US"> Products and Services [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_ProductsAndServicesDomain" xlink:to="lab_141438H6KL791K10I358_us-gaap_ProductsAndServicesDomain"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RetailCommunicationsMember" xlink:label="loc_350FKH75322F_idt_RetailCommunicationsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_RetailCommunicationsMember" xml:lang="en-US"> Retail Communications [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_RetailCommunicationsMember" xlink:to="lab_572HMJ97544H_idt_RetailCommunicationsMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_WholesaleCarrierServicesMember" xlink:label="loc_929216F4IJ579I98G136_idt_WholesaleCarrierServicesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_WholesaleCarrierServicesMember" xml:lang="en-US"> Wholesale Carrier Services [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_WholesaleCarrierServicesMember" xlink:to="lab_141438H6KL791K10I358_idt_WholesaleCarrierServicesMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_PaymentServicesMember" xlink:label="loc_350FKH75322F_idt_PaymentServicesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_PaymentServicesMember" xml:lang="en-US"> Payment Services [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_PaymentServicesMember" xlink:to="lab_572HMJ97544H_idt_PaymentServicesMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_RealEstateServiceMember" xlink:label="loc_929216F4IJ579I98G136_idt_RealEstateServiceMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_RealEstateServiceMember" xml:lang="en-US"> Real Estate Service [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_RealEstateServiceMember" xml:lang="en-US"> Real estate [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_RealEstateServiceMember" xlink:to="lab_141438H6KL791K10I358_idt_RealEstateServiceMember"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_OtherMember" xlink:label="loc_350FKH75322F_idt_OtherMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_OtherMember" xml:lang="en-US"> Other [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_OtherMember" xlink:to="lab_572HMJ97544H_idt_OtherMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems" xml:lang="en-US"> Revenue from External Customer [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems" xlink:to="lab_141438H6KL791K10I358_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable" xml:lang="en-US"> Schedule of Revenue by Major Customers, by Reporting Segments [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="loc_929216F4IJ579I98G136_us-gaap_StatementGeographicalAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_StatementGeographicalAxis" xml:lang="en-US"> Geographical [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_StatementGeographicalAxis" xlink:to="lab_141438H6KL791K10I358_us-gaap_StatementGeographicalAxis"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="loc_350FKH75322F_us-gaap_SegmentGeographicalDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_SegmentGeographicalDomain" xml:lang="en-US"> Geographical [Domain] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_us-gaap_SegmentGeographicalDomain" xml:lang="en-US"> United States [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_SegmentGeographicalDomain" xlink:to="lab_572HMJ97544H_us-gaap_SegmentGeographicalDomain"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_929216F4IJ579I98G136_country_US"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_country_US" xml:lang="en-US"> UNITED STATES </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_country_US" xml:lang="en-US"> Revenue from customers located outside of the United States [Member] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_141438H6KL791K10I358_country_US" xml:lang="en-US"> United States [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_country_US" xlink:to="lab_141438H6KL791K10I358_country_US"/>
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_GB" xlink:label="loc_350FKH75322F_country_GB"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_country_GB" xml:lang="en-US"> UNITED KINGDOM </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_572HMJ97544H_country_GB" xml:lang="en-US"> Revenue from customers located in the United Kingdom [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_country_GB" xlink:to="lab_572HMJ97544H_country_GB"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems" xlink:label="loc_929216F4IJ579I98G136_us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_EntityWideRevenueMajorCustomerLineItems" xml:lang="en-US"> Revenue, Major Customer [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_EntityWideRevenueMajorCustomerLineItems" xlink:to="lab_141438H6KL791K10I358_us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xlink:label="loc_350FKH75322F_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xml:lang="en-US"> Schedule of Revenues from External Customers and Long-Lived Assets [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable" xlink:to="lab_572HMJ97544H_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_ForeignCountriesMember" xlink:label="loc_929216F4IJ579I98G136_idt_ForeignCountriesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_ForeignCountriesMember" xml:lang="en-US"> Foreign Countries [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_ForeignCountriesMember" xlink:to="lab_141438H6KL791K10I358_idt_ForeignCountriesMember"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:label="loc_350FKH75322F_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xml:lang="en-US"> Revenues from External Customers and Long-Lived Assets [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems" xlink:to="lab_572HMJ97544H_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems"/>
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncurrentAssets" xlink:label="loc_929216F4IJ579I98G136_us-gaap_NoncurrentAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_us-gaap_NoncurrentAssets" xml:lang="en-US"> Long-Lived Assets </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_us-gaap_NoncurrentAssets" xml:lang="en-US"> Long-lived assets, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_us-gaap_NoncurrentAssets" xlink:to="lab_141438H6KL791K10I358_us-gaap_NoncurrentAssets"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_BusinessSegmentInformationTextualAbstract" xlink:label="loc_350FKH75322F_idt_BusinessSegmentInformationTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_572HMJ97544H_idt_BusinessSegmentInformationTextualAbstract" xml:lang="en-US"> Business Segment Information Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="lab_572HMJ97544H_idt_BusinessSegmentInformationTextualAbstract" xml:lang="en-US"> Business Segment Information (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_350FKH75322F_idt_BusinessSegmentInformationTextualAbstract" xlink:to="lab_572HMJ97544H_idt_BusinessSegmentInformationTextualAbstract"/>
<loc xlink:type="locator" xlink:href="idt-20170731.xsd#idt_QuarterlyFinancialInformationDisclosureTextualAbstract" xlink:label="loc_929216F4IJ579I98G136_idt_QuarterlyFinancialInformationDisclosureTextualAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="lab_141438H6KL791K10I358_idt_QuarterlyFinancialInformationDisclosureTextualAbstract" xml:lang="en-US"> Quarterly Financial Information Disclosure Textual [Abstract] </label>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="lab_141438H6KL791K10I358_idt_QuarterlyFinancialInformationDisclosureTextualAbstract" xml:lang="en-US"> Selected Quarterly Financial Data (Unaudited) (Textual) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_929216F4IJ579I98G136_idt_QuarterlyFinancialInformationDisclosureTextualAbstract" xlink:to="lab_141438H6KL791K10I358_idt_QuarterlyFinancialInformationDisclosureTextualAbstract"/>
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</linkbase>

5 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

10/14/21  Idt Corp.                         10-K        7/31/21  135:12M                                    M2 Compliance LLC/FA
12/22/20  Idt Corp.                         10-K/A      7/31/20   12:298K                                   EdgarAgents LLC/FA
10/14/20  Idt Corp.                         10-K        7/31/20  128:8.4M                                   EdgarAgents LLC/FA
 2/23/18  SEC                               UPLOAD3/23/18    1:35K  Idt Corp.
 2/07/18  SEC                               UPLOAD3/23/18    1:144K Idt Corp.
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Filing Submission 0001213900-17-010610   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
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