N-MFP LIVE N 2011-01-31 0000746458 S000006473 1 N N 002-91229 AMERICAN CENTURY INVESTMENT MANAGEMENT, INC. 801-08174 PricewaterhouseCoopers, LLP KANSAS CITY MO AMERICAN CENTURY SERVICES, LLC American Century Services, LLC 0000794265 084-01406 N N N Other Tax Exempt Fund 24 32 243441728.54 3277234.41 285471.23 246433491.72 0.0052 1.0000 2011-01-31 1.0000 2011-01-31 C000017692 2500.00 246433491.72 1.00 -5220773.58 10947672.52 16168446.10 0.0009 1.0000 2011-01-31 1.0000 2011-01-31 Alameda County Industrial Development Auth. Alameda County Industrial Development Auth. 0.46 011107AE9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 4200000.00 4200000.00 0.0170 N 4200000.00 4200000.00 Allen County Health Care Facilities Allen County Health Care Facilities 0.39 01757RAA1 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1440000.00 1440000.00 0.0058 N 1440000.00 1440000.00 Austin Trust Austin Trust 0.47 05248P7H2 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 2900000.00 2900000.00 0.0118 N 2900000.00 2900000.00 Avon Industrial Development Avon Industrial Development 0.36 054027AC1 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2745000.00 2745000.00 0.0111 N 2745000.00 2745000.00 Baltimore Industrial Development Auth. Baltimore Industrial Development Auth. 0.37 05922DAA3 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BAYERISCHE LANDESBANK N/A N/A Y BAYERISCHE LANDESBANK N/A N/A N 8095000.00 8095000.00 0.0328 N 8095000.00 8095000.00 Berks County Municipal Auth. Berks County Municipal Auth. 0.49 084538GR2 Other Municipal Debt First Tier Security 2011-02-07 2011-07-14 N N N 11685000.00 11685000.00 0.0474 N 11685000.00 11685000.00 Bradley County Industrial Development Board Bradley County Industrial Development Board 0.36 104565CP9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 7880000.00 7880000.00 0.0320 N 7880000.00 7880000.00 Brazos Harbor Industrial Development Corp. Brazos Harbor Industrial Development Corp. 0.41 10623QAA6 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 N N N 12000000.00 12000000.00 0.0487 N 12000000.00 12000000.00 Buncombe County Buncombe County 0.39 120511UZ1 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1050000.00 1050000.00 0.0043 N 1050000.00 1050000.00 California School Cash Reserve Program Auth. California School Cash Reserve Program Auth. 2 130583CR6 Other Municipal Debt First Tier Security 2011-06-01 2011-06-01 N N N 10500000.00 10537611.94 0.0428 N 10554600.00 10554600.00 California Statewide Communities Development Auth. California Statewide Communities Development Auth. 0.51 130911LY4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM N/A N/A Y CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM N/A N/A N 620000.00 620000.00 0.0025 N 620000.00 620000.00 Clayton County Multi-Family Housing Auth. Clayton County Multi-Family Housing Auth. 1.04 184160FH7 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y SOCIETE GENERALE N/A N/A Y SOCIETE GENERALE N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 6955000.00 6955000.00 0.0282 N 6955000.00 6955000.00 Clayton County Multi-Family Housing Auth. Clayton County Multi-Family Housing Auth. 1.04 184160FF1 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y SOCIETE GENERALE N/A N/A Y SOCIETE GENERALE N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 3315000.00 3315000.00 0.0135 N 3315000.00 3315000.00 Clayton County Multi-Family Housing Auth. Clayton County Multi-Family Housing Auth. 1.04 184160FE4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y SOCIETE GENERALE N/A N/A Y SOCIETE GENERALE N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 6155000.00 6155000.00 0.0250 N 6155000.00 6155000.00 Crawford Education Facilities Corp. Crawford Education Facilities Corp. 0.47 225095AA6 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BNP PARIBAS N/A N/A Y BNP PARIBAS N/A N/A N 9800000.00 9800000.00 0.0398 N 9800000.00 9800000.00 Delaware Health Facilities Auth. Delaware Health Facilities Auth. 0.45 246388KD3 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y PNC BANK NA N/A N/A Y PNC BANK NA N/A N/A N 17125000.00 17125000.00 0.0695 N 17125000.00 17125000.00 DeSoto County Industrial Development DeSoto County Industrial Development 0.38 241521AM5 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BRANCH BANKING & TRUST CO. N/A N/A Y BRANCH BANKING & TRUST CO. N/A N/A N 2000000.00 2000000.00 0.0081 N 2000000.00 2000000.00 Dover-Foxcroft Maine Dover-Foxcroft Maine 0.42 260109AA1 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1160000.00 1160000.00 0.0047 N 1160000.00 1160000.00 Escambia County Solid Waste Disposal System Escambia County Solid Waste Disposal System 0.38 296163BB3 Variable Rate Demand Note First Tier Security 2011-02-01 2011-02-01 N N N 5600000.00 5600000.00 0.0227 N 5600000.00 5600000.00 Guymon Utilities Auth. Guymon Utilities Auth. 0.39 403613AA0 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 3300000.00 3300000.00 0.0134 N 3300000.00 3300000.00 Hale County Industrial Development Corp. Hale County Industrial Development Corp. 0.49 405475AA2 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 3000000.00 3000000.00 0.0122 N 3000000.00 3000000.00 Hawaii State Department of Budget & Finance Hawaii State Department of Budget & Finance 0.46 419798NJ8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1000000.00 1000000.00 0.0041 N 1000000.00 1000000.00 Hutchinson Industrial Development Hutchinson Industrial Development 0.36 448174AR3 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 1000000.00 1000000.00 0.0041 N 1000000.00 1000000.00 Illinois Development Finance Auth. Illinois Development Finance Auth. 0.57 45188RUD9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 4250000.00 4250000.00 0.0172 N 4250000.00 4250000.00 Illinois Finance Auth. Illinois Finance Auth. 0.57 45200BH43 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 4000000.00 4000000.00 0.0162 N 4000000.00 4000000.00 Illinois Finance Auth. Illinois Finance Auth. 0.57 45200BFE3 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1900000.00 1900000.00 0.0077 N 1900000.00 1900000.00 Illinois Housing Development Auth. Illinois Housing Development Auth. 0.68 45203LAG8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 1925000.00 1925000.00 0.0078 N 1925000.00 1925000.00 Indiana Development Finance Auth. Indiana Development Finance Auth. 0.52 454907CF1 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 2135000.00 2135000.00 0.0087 N 2135000.00 2135000.00 Iowa Finance Auth. Economic Development Iowa Finance Auth. Economic Development 0.36 46246MDZ8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 N N N 4000000.00 4000000.00 0.0162 N 4000000.00 4000000.00 Iowa Finance Auth. Industrial Development Iowa Finance Auth. Industrial Development 0.46 46246HFV6 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1300000.00 1300000.00 0.0053 N 1300000.00 1300000.00 Iredell County Industrial Facilities & Pollution Control Financing Auth. Iredell County Industrial Facilities & Pollution Control Financing Auth. 0.46 462673AH7 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1100000.00 1100000.00 0.0045 N 1100000.00 1100000.00 Jasper County Industrial Development Jasper County Industrial Development 0.49 471371AB0 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF THE WEST N/A N/A Y BANK OF THE WEST N/A N/A N 2800000.00 2800000.00 0.0114 N 2800000.00 2800000.00 JP Morgan Chase Trust JP Morgan Chase Trust 0.39 46632P2E2 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y JPMORGAN CHASE BANK N/A N/A Y JPMORGAN CHASE BANK N/A N/A ASSURED GUARANTY MUNICIPAL CORP N/A N/A N 3695000.00 3695000.00 0.0150 N 3695000.00 3695000.00 Los Angeles California Los Angeles California 2 544351GU7 Other Municipal Debt First Tier Security 2011-05-31 2011-05-31 N N N 6500000.00 6525262.94 0.0265 N 6530420.00 6530420.00 Los Angeles Unified School District Los Angeles Unified School District 2 544646C59 Other Municipal Debt First Tier Security 2011-06-30 2011-06-30 N N N 3000000.00 3016173.05 0.0122 N 3018690.00 3018690.00 Louisiana Local Government Environmental Facilities & Community Development Auth. Louisiana Local Government Environmental Facilities & Community Development Auth. 0.44 546279YW4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1760000.00 1760000.00 0.0071 N 1760000.00 1760000.00 Macon Trust Macon Trust 0.48 555866BJ0 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 5776000.00 5776000.00 0.0234 N 5776000.00 5776000.00 Maryland Economic Development Corp. Maryland Economic Development Corp. 0.54 57420NAQ4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1215000.00 1215000.00 0.0049 N 1215000.00 1215000.00 Massachusetts Industrial Finance Agency. Massachusetts Industrial Finance Agency. 0.73 575855T35 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF NEW YORK MELLON N/A N/A Y BANK OF NEW YORK MELLON N/A N/A N 1415000.00 1415000.00 0.0057 N 1415000.00 1415000.00 McCook Illinois McCook Illinois 0.57 579703AJ8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y NORTHERN TRUST COMPANY N/A N/A Y NORTHERN TRUST COMPANY N/A N/A N 1700000.00 1700000.00 0.0069 N 1700000.00 1700000.00 McCook Illinois McCook Illinois 0.57 579703AH2 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y NORTHERN TRUST COMPANY N/A N/A Y NORTHERN TRUST COMPANY N/A N/A N 600000.00 600000.00 0.0024 N 600000.00 600000.00 Milwaukee Redevelopment Auth. Milwaukee Redevelopment Auth. 0.57 60242EFM8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2175000.00 2175000.00 0.0088 N 2175000.00 2175000.00 Mississippi Business Finance Corp. Mississippi Business Finance Corp. 0.39 605279LA4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 N N N 1000000.00 1000000.00 0.0041 N 1000000.00 1000000.00 Mississippi Business Finance Corp. Mississippi Business Finance Corp. 0.39 605279EZ7 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1715000.00 1715000.00 0.0070 N 1715000.00 1715000.00 Muleshoe Economic Development Corp. Industrial Development Muleshoe Economic Development Corp. Industrial Development 0.44 625196AA8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 4755000.00 4755000.00 0.0193 N 4755000.00 4755000.00 Murray Industrial Building Murray Industrial Building 0.36 627088BM8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 1000000.00 1000000.00 0.0041 N 1000000.00 1000000.00 New York City Capital Resources Corp. New York City Capital Resources Corp. 0.51 649437AG5 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 2500000.00 2500000.00 0.0101 N 2500000.00 2500000.00 New York City Industrial Development Agency New York City Industrial Development Agency 0.76 64971CSU9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y JPMORGAN CHASE BANK N/A N/A Y JPMORGAN CHASE BANK N/A N/A N 695000.00 695000.00 0.0028 N 695000.00 695000.00 North Carolina Capital Facilities Finance Agency North Carolina Capital Facilities Finance Agency 0.58 65819GCD8 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1200000.00 1200000.00 0.0049 N 1200000.00 1200000.00 North Carolina Housing Finance Agency North Carolina Housing Finance Agency 0.39 65820EK90 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 950000.00 950000.00 0.0039 N 950000.00 950000.00 North Carolina Medical Care Commission Health Care Facilities North Carolina Medical Care Commission Health Care Facilities 0.39 657902US9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1400000.00 1400000.00 0.0057 N 1400000.00 1400000.00 North Carolina Medical Care Commission Health Care Facilities North Carolina Medical Care Commission Health Care Facilities 0.39 657902RQ7 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1010000.00 1010000.00 0.0041 N 1010000.00 1010000.00 Riverside County Riverside County 2 76914AAB8 Other Municipal Debt First Tier Security 2011-10-12 2011-10-12 N N N 2680000.00 2703964.88 0.0110 N 2704093.20 2704093.20 Rock Island County Metropolitan Airport Auth. Rock Island County Metropolitan Airport Auth. 0.56 772340AL9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2155000.00 2155000.00 0.0087 N 2155000.00 2155000.00 Santa Rosa Wastewater Santa Rosa Wastewater 0.48 802649MB6 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y LANDESBANK BADEN-WUERTTEMBERG N/A N/A Y LANDESBANK BADEN-WUERTTEMBERG N/A N/A N 14100000.00 14100000.00 0.0572 N 14100000.00 14100000.00 Savannah Economic Development Auth. Savannah Economic Development Auth. 0.54 80483CBU4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1355000.00 1355000.00 0.0055 N 1355000.00 1355000.00 Shawnee Private Activity Shawnee Private Activity 0.46 820692AB7 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 1310000.00 1310000.00 0.0053 N 1310000.00 1310000.00 St. Louis County Industrial Development Educational Facilities Auth. St. Louis County Industrial Development Educational Facilities Auth. 0.39 79130TAZ6 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 5650000.00 5650000.00 0.0229 N 5650000.00 5650000.00 Stephens County Development Auth. Stephens County Development Auth. 0.62 858748AA4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 N N N 1520000.00 1520000.00 0.0062 N 1520000.00 1520000.00 Terrebonne Economic Development Auth. Terrebonne Economic Development Auth. 0.5 881181AA9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 3760000.00 3760000.00 0.0153 N 3760000.00 3760000.00 Texas Texas 2 882722VC2 Other Municipal Debt First Tier Security 2011-08-31 2011-08-31 N N N 6000000.00 6057715.73 0.0246 N 6058260.00 6058260.00 Thornton Industrial Development Thornton Industrial Development 0.36 885280AE7 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 2900000.00 2900000.00 0.0118 N 2900000.00 2900000.00 Troy Health Care Auth. Troy Health Care Auth. 0.39 897308AA0 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y FEDERAL HOME LOAN BANKS N/A N/A Y FEDERAL HOME LOAN BANKS N/A N/A N 2075000.00 2075000.00 0.0084 N 2075000.00 2075000.00 Victorville Joint Powers Financing Auth. Victorville Joint Powers Financing Auth. 1.75 92643UAC7 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BNP PARIBAS N/A N/A Y BNP PARIBAS N/A N/A N 3000000.00 3000000.00 0.0122 N 3000000.00 3000000.00 Washington Economic Development Finance Auth. Washington Economic Development Finance Auth. 0.44 939758CQ9 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y WELLS FARGO BANK NA N/A N/A Y WELLS FARGO BANK NA N/A N/A N 3780000.00 3780000.00 0.0153 N 3780000.00 3780000.00 Washington Finance Commission Nonprofit Housing Washington Finance Commission Nonprofit Housing 0.65 939783HP4 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y BANK OF AMERICA N.A. N/A N/A Y BANK OF AMERICA N.A. N/A N/A N 1000000.00 1000000.00 0.0041 N 1000000.00 1000000.00 Winchester Industrial Building Winchester Industrial Building 0.36 972856EA2 Variable Rate Demand Note First Tier Security 2011-02-07 2011-02-07 Y U.S. BANK N.A. N/A N/A Y U.S. BANK N.A. N/A N/A N 1000000.00 1000000.00 0.0041 N 1000000.00 1000000.00