<SUBMISSION>
<SECRELEASE-DATETIME> 20200213-164353 ⇐ Metadata from SEC Info (ET)
<SECWEBSITE-DATETIME> 20200213-164353 ⇐ Metadata from SEC Info (ET)
<ACCEPTANCE-DATETIME> 20200213-164319 ⇐ Filing accepted by SEC (ET)
<ACCESSION-NUMBER> 0001053507-20-000019
<TYPE> 8-K
<PUBLIC-DOCUMENT-COUNT> 14
<PERIOD> 20200213
<ITEMS> 1.01
<ITEMS> 2.03
<FILING-DATE> 20200213
<DATE-OF-FILING-DATE-CHANGE> 20200213
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<FILER>
<COMPANY-DATA>
<CONFORMED-NAME> AMERICAN TOWER CORP /MA/
<CIK> 0001053507
<ASSIGNED-SIC> 6798
<IRS-NUMBER> 650723837 ⇒ 65-0723837
<STATE-OF-INCORPORATION> DE
<FISCAL-YEAR-END> 1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE> 8-K
<ACT> 34
<FILE-NUMBER> 001-14195
<FILM-NUMBER> 20611442
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1> 116 HUNTINGTON AVE
<CITY> BOSTON
<STATE> MA
<ZIP> 02116
<PHONE> 6173757500
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1> 116 HUNTINGTON AVE
<CITY> BOSTON
<STATE> MA
<ZIP> 02116
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME> AMERICAN TOWER SYSTEMS CORP
<DATE-CHANGED> 19980128
</FORMER-COMPANY>
</FILER>
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<DOCUMENT>
<TYPE> 8-K
<SEQUENCE> 1
<FILENAME> a8-k2020termloan.htm
<DESCRIPTION> 8-K
<TEXT>
<XBRL>
<?xml version="1.0" encoding="UTF-8"?>
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</TEXT>
</DOCUMENT>
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<DOCUMENT>
<TYPE> EX-101.SCH
<SEQUENCE> 2
<FILENAME> amt-20200213.xsd
<DESCRIPTION> XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
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</TEXT>
</DOCUMENT>
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<DOCUMENT>
<TYPE> EX-101.CAL
<SEQUENCE> 3
<FILENAME> amt-20200213_cal.xml
<DESCRIPTION> XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
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</TEXT>
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<DOCUMENT>
<TYPE> EX-101.DEF
<SEQUENCE> 4
<FILENAME> amt-20200213_def.xml
<DESCRIPTION> XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
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</TEXT>
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<DOCUMENT>
<TYPE> EX-101.LAB
<SEQUENCE> 5
<FILENAME> amt-20200213_lab.xml
<DESCRIPTION> XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
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</TEXT>
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<DOCUMENT>
<TYPE> EX-101.PRE
<SEQUENCE> 6
<FILENAME> amt-20200213_pre.xml
<DESCRIPTION> XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
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<DOCUMENT>
<TYPE> ZIP
<SEQUENCE> 7
<FILENAME> 0001053507-20-000019-xbrl.zip
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<TEXT>
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</TEXT>
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<DOCUMENT>
<TYPE> XML
<SEQUENCE> 8 ⇐ Not a Document/Exhibit
<FILENAME> report.css
<DESCRIPTION> IDEA: XBRL DOCUMENT
<TEXT>
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</TEXT>
</DOCUMENT>
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<DOCUMENT>
<TYPE> XML
<SEQUENCE> 9 ⇐ Document/Exhibit 8
<FILENAME> R1.htm
<DESCRIPTION> IDEA: XBRL DOCUMENT
<TEXT>
<html>
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</TEXT>
</DOCUMENT>
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<DOCUMENT>
<TYPE> XML
<SEQUENCE> 10 ⇐ Document/Exhibit 9
<FILENAME> FilingSummary.xml
<DESCRIPTION> IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='utf-8'?>
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<DOCUMENT>
<TYPE> EXCEL
<SEQUENCE> 11 ⇐ Document/Exhibit 10
<FILENAME> Financial_Report.xlsx
<DESCRIPTION> IDEA: XBRL DOCUMENT
<TEXT>
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</TEXT>
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<DOCUMENT>
<TYPE> JSON
<SEQUENCE> 12 ⇐ Document/Exhibit 11
<FILENAME> MetaLinks.json
<DESCRIPTION> IDEA: XBRL DOCUMENT
<TEXT>
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</TEXT>
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<DOCUMENT>
<TYPE> XML
<SEQUENCE> 13 ⇐ Document/Exhibit 12
<FILENAME> a8-k2020termloan_htm.xml
<DESCRIPTION> IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version="1.0" encoding="utf-8"?>
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</DOCUMENT>
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<DOCUMENT>
<TYPE> XML
<SEQUENCE> 14 ⇐ Not a Document/Exhibit
<FILENAME> Show.js
<DESCRIPTION> IDEA: XBRL DOCUMENT
<TEXT>
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</DOCUMENT>
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</SUBMISSION> |
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