Report 
 
      
Registrant:   American Century International Bond Funds — List all N-SARs

Annual Report for the 2nd-half period ended at fiscal year end:  12/31/06

Were there any Answer File errors in the Filing?  None FoundNone Found by SEC InfoNot Checked by the FilerOne or more Found by SEC Info
Was the Answer File completed by the Registrant?  Yes

Is this an Amendment to a previous Report?  No
Is this a change to a previous Report?      No
 
Registrant 
 
 1.
SEC CIK:      880268
SEC File #:   811-06441

Telephone #:  816-340-7396
 
 2.
Address:      4500 Main Street
              Kansas City, MO  64111
 
 3.
Is this the first Form N-SAR filed by the Registrant?  No
 
 4.
Is this the final Form N-SAR filed by the Registrant?  No
 
 
Funds/Series 
↑Top of Form N-SAR 
     
                                                                               
 7.
Is the Registrant a Funds/Series (multiple portfolios) company?  Yes

The number of separate Funds/Series (portfolios) at period end:  1
The number of separate Funds/Series (portfolios) reported here:  1...

N-SAR S#      Fund/Series — Filings for F/S#… ⇒ Symbols 
 
↓Information Common to All 
↓
Series 1:     International Bond Fund — S#5795 ⇒ AIBDX & 2 more
 
Family of Investment Companies 
 
19.
Is the Registrant/Series part of a “family” of investment companies?  Yes

Total number of registered management investment companies, Series
and portfolios (excluding any Unit Investment Trusts) in the family:  107

The Identification Code of the family for Form N-SAR Filings:  AMERICENIN
 
Investment Company Type 
 
27.
Is the Registrant an “open-end” investment company?  Yes, Open-End
 
Additional Disclosures 
 
77.
Did the Registrant file any additional Exhibits with the filing of this
Report (listed here and filed either herewith — as one of the ‘EX-99.*’
↑Exhibits in this Filing — or separately and incorporated by reference)?  Yes

EX-99.77B:  Accountant’s Report re: Internal Controls?  Yes

EX-99.77Q1: Other Disclosure?  Yes

EX-99.77Q3: Other Info?  Yes
 
Subsidiaries 
 
78.
Does the Registrant have any wholly-owned investment company
subsidiaries whose operating and financial data are consolidated with
that of the Registrant in this Report?  No
 
 All Series
↑List of Funds/Series Reported Here 

Information Common to All Funds/Series
 
 All: 
Investment Adviser 
 
 8.1
Name:         American Century Investment Management Inc.
Role:         Adviser
SEC File #:   801-08174
Location:     Kansas City, MO
 
 8.2
Name:         JP Morgan Investment Management Inc.
Role:         Sub-Adviser
SEC File #:   801-21011
Location:     New York, NY
 
 All: 
Administrator 
 
10.1
Name:         American Century Services, L.L.C.
SEC File #:   084-01406
Location:     Kansas City, MO
 
 All: 
Principal Underwriter 
 
11.1
Name:         American Century Investment Services, Inc.
SEC File #:   008-35220
Location:     Kansas City, MO
 
 All: 
Shareholder Servicing/Transfer Agent 
 
12.1
Name:         American Century Services, L.L.C.
SEC File #:   084-01406
Location:     Kansas City, MO
 
 All: 
Independent Public Accountant 
 
13.1
Name:         Pricewaterhousecoopers LLP
Location:     Kansas City, MO
 
 All: 
Affiliated Broker/Dealer 
 
14.1
Name:         American Century Investment Services, Inc.
SEC File #:   008-35220
 
14.2
Name:         American Century Brokerage, Inc.
SEC File #:   008-50034
 
14.3
Name:         JPMorgan Securities Inc.
SEC File #:   008-36950
 
 All: 
Custodian 
 
15.1
Name:         State Street Bank & Trust Co.
Role:         Custodian
Location:     Kansas City, MO

Type of custody:  Rule 17f-2 — Self
 
15.2
Name:         Commerce Bank, N.A.
Role:         Custodian
Location:     Kansas City, MO

Type of custody:  Non-Standard — Other
 
18.
Does the Registrant’s/Series’ Custodian(s) maintain some or all of the
Registrant’s/Series’ securities in a central depository or book-entry
system pursuant to Rule 17f-4?  Yes
 
 All: 
Portfolio Transactions with Entities Acting as Principals 
 
22.
The entities acting as principals with whom the Registrant did the
largest amount of portfolio transactions, based on total value of
principal, during the period:
 
22.1
Entity:       Barclay’s Capital Securities
IRS #:        13-3410232
Registrant’s purchases ($000s):  444,204
Registrant’s sales ($000s):  302,257
 
22.2
Entity:       UBS Finance
IRS #:        13-3873456
Registrant’s purchases ($000s):  387,071
Registrant’s sales ($000s):  318,223
 
22.3
Entity:       Abn Amro, Inc.
IRS #:        13-3227945
Registrant’s purchases ($000s):  440,816
Registrant’s sales ($000s):  218,229
 
22.4
Entity:       Credit Suisse First Boston
IRS #:        13-5659485
Registrant’s purchases ($000s):  227,500
Registrant’s sales ($000s):  407,079
 
22.5
Entity:       Dresdner, Kleinwort, Wasserstein Securities
IRS #:        13-3894311
Registrant’s purchases ($000s):  308,911
Registrant’s sales ($000s):  277,087
 
22.6
Entity:       Goldman Sachs & Co. Inc.
IRS #:        13-5108880
Registrant’s purchases ($000s):  123,346
Registrant’s sales ($000s):  278,197
 
22.7
Entity:       Deutsche Bank Securities
IRS #:        13-2730828
Registrant’s purchases ($000s):  136,179
Registrant’s sales ($000s):  189,144
 
22.8
Entity:       BNP Paribas
Registrant’s purchases ($000s):  251,516
Registrant’s sales ($000s):  65,830
 
22.9
Entity:       HSBC Securities (USA) Inc.
IRS #:        13-2650272
Registrant’s purchases ($000s):  149,041
Registrant’s sales ($000s):  109,120
 
22.10
Entity:       Morgan Stanley
IRS #:        13-2655998
Registrant’s purchases ($000s):  152,431
Registrant’s sales ($000s):  72,022
 
23.
Total purchase/sale transactions by the Registrant during the period:
   Aggregate purchases ($000s):  3,331,222
   Aggregate sales ($000s):  2,768,258
 
 All: 
Considerations which Affected the Participation of Brokers or Dealers 
 
26.
Considerations which affected the participation of brokers or dealers or
other entities in commissions or other compensation paid on portfolio
transactions of the Registrant:

Consideration?
Sales of the Registrant’s/Series’ shares ...............................  No
Receipt of investment research and statistical info ....................  No
Receipt of quotations for portfolio valuations .........................  No
Ability to execute portfolio transactions to obtain the best price
  and execution ........................................................  Yes
Receipt of telephone line and wire services ............................  No
Broker or Dealer which is an affiliated person .........................  No
An arrangement to return or credit part or all of commissions or
  profits thereon...
    To an Investment Adviser or Principal Underwriter, or to an
      affiliated person of either ......................................  No
    To the Registrant ..................................................  No
Other ..................................................................  No
 
 All: 
Sales and Repurchases 
 
28.
Monthly total Net Asset Value (NAV) of sales and repurchases of the
Registrant’s/Series’ shares:
 
1st Month of period:  ($000s)
    Total NAV of shares sold:
      New sales (including exchanges) ............................
 45,483
      Reinvestment of dividends and distributions ................
 –
      Other ......................................................
 –
    Total NAV of shares redeemed & repurchased (inc. exchanges) ..
 21,069
2nd Month:
    Total NAV of shares sold:
      New sales (including exchanges) ............................
 62,144
      Reinvestment of dividends and distributions ................
 –
      Other ......................................................
 –
    Total NAV of shares redeemed & repurchased (inc. exchanges) ..
 24,983
3rd Month:
    Total NAV of shares sold:
      New sales (including exchanges) ............................
 49,184
      Reinvestment of dividends and distributions ................
 –
      Other ......................................................
 –
    Total NAV of shares redeemed & repurchased (inc. exchanges) ..
 25,154
4th Month:
    Total NAV of shares sold:
      New sales (including exchanges) ............................
 53,132
      Reinvestment of dividends and distributions ................
 –
      Other ......................................................
 –
    Total NAV of shares redeemed & repurchased (inc. exchanges) ..
 44,489
5th Month:
    Total NAV of shares sold:
      New sales (including exchanges) ............................
 113,390
      Reinvestment of dividends and distributions ................
 –
      Other ......................................................
 –
    Total NAV of shares redeemed & repurchased (inc. exchanges) ..
 87,738
6th Month:
    Total NAV of shares sold:
      New sales (including exchanges) ............................
 62,049
      Reinvestment of dividends and distributions ................
 22,679
      Other ......................................................
 –
    Total NAV of shares redeemed & repurchased (inc. exchanges) ..
 28,034

Total of all months:  ($000s)
    Total NAV of shares sold:
      New sales (including exchanges) ............................
 385,382
      Reinvestment of dividends and distributions ................
 22,679
      Other ......................................................
 –
    Total NAV of shares redeemed & repurchased (inc. exchanges) ..
 231,467

Total NAV of the Registrant’s/Series’ share sales during the period
subject to a sales load ($000s):  0
 
 All: 
Advisory Fee 
 
45.
Did the Registrant/Series have an advisory contract during the period?  Yes
 
46.
Did the Registrant/Series pay more than one Investment Adviser directly
for investment advice during the period?  No
 
47.
Was the Registrant’s/Series’ advisory fee based solely on a percentage
of its assets?  Yes
 
48.
Fee (single rate or step rates) applied to the Registrant’s/Series’
assets based on the advisory contract:
    Single-fee rate:  0.0%
    Step-fee rates:
      For 1st $000s:  1,000,000
        Annual rate:  0.902%
      Of next $000s:  1,000,000
        Annual rate:  0.85%
      Of next $000s:  3,000,000
        Annual rate:  0.82%
      Of next $000s:  5,000,000
        Annual rate:  0.8%
      Of next $000s:  15,000,000
        Annual rate:  0.787%
      Of next $000s:  25,000,000
        Annual rate:  0.785%
      & Above $000s:  50,000,000
        Annual rate:  0.784%
 
49.
Was the Registrant’s/Series’ advisory fee during the period based solely
on a percentage of its income?  No
 
50.
Was the Registrant’s/Series’ advisory fee during the period based on
some combined percentage of its income and assets?  No
 
51.
Was the Registrant’s/Series’ advisory fee during the period based in
whole or in part on its investment performance?  No
 
52.
Was the Registrant’s/Series’ advisory fee during the period based in
whole or in part on the assets, income or performance of other
Registrants?  Yes
 
53.
Were the expenses of the Registrant/Series limited or reduced at any
time during the period by some agreement or understanding other than by
Blue Sky Laws?  No
 
 All: 
Classification and Asset Allocation 
 
62.
Does the Registrant/Series invest primarily in debt securities,
including convertible debt securities, options & futures on debt
securities or indices of debt securities?  Yes

The percentage of net assets in each type at period end:

Debt — Short-Term Maturities
U.S. Treasury ...............................      0.0%
U.S. Government Agency ......................      2.7
Repurchase agreements .......................      0.0
State and Municipal – tax-free ..............      0.0
Bank certificates of deposit – domestic .....      0.0
Bank certificates of deposit – foreign ......      0.0
Bankers acceptances .........................      0.0
Commercial paper – taxable ..................      0.0
Time deposits ...............................      0.0
Options .....................................      0.0
All other ...................................    10.1

Debt — Intermediate & Long-Term Maturities
U.S. Treasury ...............................      0.0%
U.S. Government Agency ......................      0.0
State and Municipal – tax-free ..............      0.0
Corporate ...................................    28.9
All other ...................................    57.2

Non-Debt
Investments other than debt securities ......      0.0%
 
63.
The dollar-weighted average portfolio maturity at period end in days or,
if longer than one year, in years (to one decimal place):
    Days:     0
    Years:    9.1
 
64.
Is the timely payment of principal and interest on any of the
instruments listed in Item 62 insured or guaranteed by an entity other
than the issuer?  No

Is the issuer of any instrument covered in Item 62 delinquent or in
default as to payment of principal or interest at period end?  No
 
66.
Is the Registrant/Series a Fund that usually invests in equity
securities, options & futures on equity securities, indices of equity
securities or securities convertible into equity securities?  No
 
67.
Is the Registrant/Series a “balanced” Fund?  No
 
68.
Does the Registrant/Series have more than 50% of its net assets at
period end invested in the securities of issuers...
    Engaged primarily in production or distribution of precious metals?  No
    Located primarily in countries other than the United States?  Yes
 
69.
Is the Registrant/Series an index Fund?  No
 
 All: 
Investment Practices 
 
70.
Activities that are permitted by the Registrant’s/Series’ investment
policies, and which were engaged in during the period:

Activity                                            Permitted Engaged In
Writing or investing in repurchase agreements?           Yes      No
Writing or investing in options on equities?             No        –
Writing or investing in options on debt securities?      Yes      No
Writing or investing in options on stock indices?        No        –
Writing or investing in interest rate futures?           Yes to both
Writing or investing in stock index futures?             No        –
Writing or investing in options on futures?              Yes      No
Writing or investing in options on stock index futures?  No        –
Writing or investing in other commodity futures?         No        –
Investments in restricted securities?                    Yes      No
Investments in shares of other investment companies?     Yes      No
Investments in securities of foreign issuers?            Yes to both
Currency exchange transactions?                          Yes to both
Loaning portfolio securities?                            Yes      No
Borrowing of money?                                      Yes      No
Purchases/sales by certain exempted affiliated persons?  Yes      No
Margin purchases?                                        No        –
Short selling?                                           Yes      No
 
 All: 
Portfolio Turnover 
 
71.
Portfolio turnover rate for the period:
 
Purchases ($000s):  2,642,042
Sales ($000s):      2,371,299

Monthly average Value of portfolio ($000s):  1,153,199

Percent turnover (lesser of Purchases or Sales, divided by Value):  206%
 
 All: 
Financial Info — Income and Expenses 
 
72.
The number of months covered by the values in Items 72 and 73:  12

Income  ($000s)
Net interest income ..............................................
 42,477
Net dividend income ..............................................
 –
Account maintenance fees .........................................
 –
Net other income .................................................
 –

Expenses  ($000s)
Advisory fees ....................................................
 10,145
Administrator fees ...............................................
 –
Salaries and other compensation ..................................
 –
Shareholder Servicing Agent fees .................................
 –
Custodian fees ...................................................
 –
Postage ..........................................................
 –
Printing expenses ................................................
 –
Directors’ fees ..................................................
 96
Registration fees ................................................
 –
Taxes ............................................................
 –
Interest .........................................................
 –
Bookkeeping fees paid to anyone performing this service ..........
 –
Auditing fees ....................................................
 –
Legal fees .......................................................
 –
Marketing/distribution payments, incl. Rule 12b-1 plan payments ..
 290
Amortization of organization expenses ............................
 –
Shareholder meeting expenses .....................................
 –
Other expenses ...................................................
 12
Total expenses ...................................................
 10,543

Expense reimbursements ($000s):   0

Net investment income ($000s):    31,934

Realized capital gains ($000s):   5,424
Realized capital losses ($000s):  0

Net unrealized appreciation during the period ($000s):  63,356
Net unrealized depreciation during the period ($000s):  0

Total income dividends for which the record date passed during the
period ($000s):  30,503
Dividends for a second class of shares ($000s):  1,235

Total capital gains distributions for which the record date passed
during the period ($000s):  1,053
 
73.
Distributions per share for which the record date passed during the
period, shown in fractions of a cent, if so declared:

Dividends from net investment income:    $0.0000

Distribution of capital gains:  $0.0000
Other distributions:            $0.0000
 
 All: 
Financial Info — Condensed Balance Sheet Data 
 
74.
Assets  ($000s)
Cash .............................................................
 156
Repurchase agreements ............................................
 –
Short-term debt securities, other than repurchase agreements .....
 187,408
Long-term debt securities, including convertible debt ............
 1,268,257
Preferred, conv. preferred and adjustable-rate preferred stock ...
 –
Common stock .....................................................
 –
Options on equities ..............................................
 –
Options on all futures ...........................................
 –
Other investments ................................................
 –
Receivables from portfolio instruments sold ......................
 5,848
Receivables from affiliated persons ..............................
 –
Other receivables ................................................
 36,228
All other assets .................................................
 6,345
Total assets .....................................................
 1,504,242

Liabilities  ($000s)
Payables for portfolio instruments purchased .....................
 20,810
Amounts owed to affiliated persons ...............................
 955
Senior long-term debt ............................................
 –
Other liabilities:
  Reverse repurchase agreements ..................................
 –
  Short sales ....................................................
 –
  Written options ................................................
 –
  All other liabilities ..........................................
 10,708

Equity  ($000s)
Senior equity ....................................................
 –
Net assets of common shareholders ................................
 1,471,769

Number of shares outstanding (000s):   102,057
Number of shares outstanding of a second class of shares (000s):  4,754

Net Asset Value (NAV) per share (to nearest cent):  $0.00

Total number of shareholder accounts:  10,573

Total value of assets in segregated accounts ($000s):  0
 
75.
Monthly average net assets during the period ($000s):  1,197,297
 
 All: 
Fidelity Bond in Effect at Fiscal Year End 
 
80.
Insurer:      Ici Mutual Insurance Co.

Aggregate face amount of coverage for the Registrant/Series on all bonds
on which it is named as an insured ($000s):  30,000
 
81.
Is the bond part of a joint fidelity bond(s) shared with other
investment companies or other entities?  Yes

How many other investment companies or other entities are covered by the
bond (counting each Fund/Series as a separate investment company):  135
 
82.
Does the mandatory coverage of the fidelity bond have a deductible?  Yes

The amount of the deductible ($000s):  150
 
83.
Were any claims with respect to this Registrant/Series filed under the
bond during the period?  No
 
84.
Were any losses incurred with respect to this Registrant/Series that
could have been filed as a claim under the fidelity bond but were not?  No
 
85.
Are the Registrant’s/Series’ Officers and Directors covered as Officers
and Directors of the Registrant/Series under any errors and omissions
insurance policy owned by the Registrant/Series or anyone else?  Yes

Were any claims filed under such policy during the period with respect
to the Registrant/Series?  No
 
 Series 1
↑Information Common to All Funds/Series  ↑List of Funds/Series 
 
 7.
Name:         International Bond Fund — S#5795 ⇒ AIBDX & 2 more

Is this the final Form N-SAR filed for this Fund/Series?  No
 
 S 1: 
Holdings of Securities Issued by Registrant’s/Series’ Brokers or Dealers 
 
24.
At period end, did the Registrant/Series hold any securities of the
Registrant’s/Series’ regular brokers or dealers, or of the parents of
such brokers or dealers, that derive more than 15% of gross revenue from
securities-related activities?  Yes

25.

The brokers or dealers, or their parents (issuers):
 
25.1
Name:         Barclay’s Bank
IRS #:        13-4942190
Type of security owned:  Debt
Value of securities owned at period end ($000s):  13,190
 
 S 1: 
Sales Load (Front-End or Deferred) and Fees (Redemption or Maintenance) 
 
29.
Was a front-end sales load deducted from any share sales during the
period?  No
 
34.
Did the Registrant/Series impose a deferred or contingent deferred sales
load during the period?  No
 
37.
Did the Registrant/Series impose a redemption fee other than a deferred
or contingent sales load during the period?  No
 
39.
Were any account maintenance fees or other administrative fees imposed
directly on shareholders during the period?  Yes
 
 S 1: 
Payment Plan for the Distribution of Fund Shares 
 
40.
During the period, did the Registrant/Series have a plan of distribution
adopted pursuant to Rule 12b-1?  Yes
 
41.
During the period, did the Registrant/Series use its assets directly to
make payments under the 12b-1 plan?  Yes
 
42.
For the period, the percentage of total dollars paid directly by the
Registrant/Series under the 12b-1 plan for each of the following:

Percentage of Total Amount Paid  (%)
Advertising ............................................................
 –
Printing & mailing of prospectuses to other than current shareholders ..
 –
Payments to underwriters ...............................................
 –
Payments to brokers or dealers .........................................
 –
Direct payments to sales personnel .....................................
 –
Payments to banks and savings & loans ..................................
 –
Other uses, including payments to its Investment Adviser separate
  from the advisory fee ................................................
 –
Unallocated payments made for a combination of such services ...........
 100
 
43.
Total amount paid directly by the Registrant/Series pursuant to its
12b-1 plan ($000s):  290
 
44.
If an Investment Adviser or other affiliated person of the
Registrant/Series made unreimbursed payments pursuant to the 12b-1 plan,
the total amount of such payments ($000s):  0
 
 S 1: 
Advisory Fee 
 
54.
Indicated below are whether services were supplied or paid for wholly or
in substantial part by Investment Adviser(s) or Administrator(s) in
connection with the advisory or administrative contract(s) but for which
the Adviser(s) or Administrator(s) are not reimbursed by the Registrant:

Provided to the Registrant?
Occupancy and office rental ............................................  Yes
Clerical and bookkeeping services ......................................  Yes
Accounting services ....................................................  Yes
Services of independent auditors .......................................  Yes
Services of outside counsel ............................................  No
Registration and filing fees ...........................................  Yes
Stationery, supplies and printing ......................................  Yes
Salaries & compensation of Registrant’s interested Directors ...........  Yes
Salaries & compensation of Registrant’s disinterested Directors ........  No
Salaries & compensation of Registrant’s Officers who aren’t Directors ..  Yes
Reports to current shareholders ........................................  Yes
Determination of offering and redemption prices ........................  Yes
Trading department .....................................................  Yes
Prospectus preparation and printing for current shareholders ...........  Yes
Other ..................................................................  Yes
 
 S 1: 
Miscellaneous Info 
 
55.
Did the Registrant/Series have any of the following outstanding at any
time during the period which exceeded 1% of aggregate net assets:
    Overdrafts?  No
    Bank loans?  No
 
56.
During the period, did the Registrant’s/Series’ Investment Adviser(s)
have advisory clients other than investment companies?  Yes
 
57.
Did the Registrant/Series adjust the number of its shares outstanding by
means of a stock split or stock dividend?  No
 
 S 1: 
Classification and Asset Allocation 
 
58.
Is the Registrant/Series a Separate Account of an insurance company?  No
 
59.
Is the Registrant/Series a management investment company?  Yes
 
60.
Was the Registrant/Series a diversified investment company at any time
during the period?  No

Was the Registrant/Series a diversified investment company at the end of
the period?  No
 
61.
The lowest minimum initial investment required by the Registrant/Series
from an investor that is not an employee or otherwise affiliated with
the Registrant/Series, its Investment Adviser, Principal Underwriter or
other affiliated entity:  $2,500
 
 Signature 
 
↑Top of Form N-SAR 
     
                                                                               
/s/      Robert J. Leach      
Name:   Robert J. Leach
Title:  Chief Financial Officer & Treasurer