<Page>
UNITED STATES CELLULAR CORPORATION
SUBSIDIARY AND AFFILIATED COMPANIES
DECEMBER 31, 2002
<Table>
<Caption>
STATE OF
INCORPORATION
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BANGOR CELLULAR TELEPHONE, L.P. Partnership
BLACK CROW WIRELESS, L.P. Partnership
BMG GROUP, LLC OKLAHOMA
CALIFORNIA RURAL SERVICE AREA #1, INC. CALIFORNIA
CAROLINA CELLULAR, INC. NORTH CAROLINA
CEDAR RAPIDS CELLULAR TELEPHONE, L.P. Partnership
CELLVEST, INC. DELAWARE
CENTRAL CELLULAR TELEPHONES LTD ILLINOIS
CENTRAL FLORIDA CELLULAR TELEPHONE COMPANY, INC FLORIDA
CHAMPLAIN CELLULAR, INC NEW YORK
CHARLOTTESVILLE MSA CELLULAR PARTNERSHIP Partnership
CHICAGO 20MHZ, LLC DELAWARE
COMMUNITY CELLULAR TELEPHONE COMPANY TEXAS
CROWN POINT CELLULAR INC. NEW YORK
DAVENPORT CELLULAR TELEPHONE COMPANY Partnership
DAVENPORT CELLULAR TELEPHONE COMPANY, INC. DELAWARE
DUBUQUE CELLULAR TELEPHONE, L.P. Partnership
EASTERN NORTH CAROLINA CELLULAR JOINT VENTURE Partnership
EAU CLAIRE MSA, INC. WISCONSIN
FLORIDA RSA # 8, INC. DELAWARE
GEORGIA RSA # 11, INC. GEORGIA
GRAY BUTTE JOINT VENTURE Partnership
GREEN BAY CELLTELCO Partnership
HARDY CELLULAR TELEPHONE COMPANY DELAWARE
HUMPHREY COUNTY CELLULAR, INC. DELAWARE
ILLINOIS RSA # 3, INC. ILLINOIS
INDIANA RSA # 4, INC. DELAWARE
INDIANA RSA # 5, INC. INDIANA
INDIANA RSA NO. 4 LIMITED PARTNERSHIP Partnership
INDIANA RSA NO. 5 LIMITED PARTNERSHIP Partnership
IOWA 13, INC. DELAWARE
IOWA RSA # 3, INC. DELAWARE
IOWA RSA # 9, INC. DELAWARE
IOWA RSA # 12, INC. DELAWARE
JACKSONVILLE CELLULAR PARTNERSHIP Partnership
JACKSONVILLE CELLULAR TELEPHONE COMPANY DELAWARE
JACKSON SQUARE WIRELESS, L.P. Partnership
KANSAS # 15 LP Partnership
KANSAS RSA # 15, INC. OHIO
KENOSHA CELLULAR TELEPHONE, L.P. Partnership
LACROSSE CELLULAR TELEPHONE COMPANY, INC. DELAWARE
LEWISTON CELLTELLCO PARTNERSHIP Partnership
MADISON CELLULAR TELEPHONE COMPANY Partnership
MAINE RSA # 1, INC. MAINE
MAINE RSA # 4, INC. MAINE
MANCHESTER-NASHUA CELLULAR TELEPHONE, L.P. Partnership
MCDANIEL CELLULAR TELEPHONE COMPANY DELAWARE
MINNESOTA INVCO OF RSA # 7, INC. DELAWARE
MINNESOTA INVCO OF RSA # 8, INC. DELAWARE
MINNESOTA INVCO OF RSA # 9, INC. DELAWARE
MINNESOTA INVCO OF RSA # 10, INC. DELAWARE
N.H. #1 RURAL CELLULAR, INC. NEW HAMPSHIRE
NEW YORK RSA 2 CELLULAR PARTNERSHIP Partnership
NEWPORT CELLULAR, INC. NEW YORK
NORTH CAROLINA RSA # 4, INC. DELAWARE
NORTH CAROLINA RSA # 9, INC. NORTH CAROLINA
NORTH CAROLINA RSA 1 PARTNERSHIP Partnership
NORTH CAROLINA RSA NO. 6, INC. CALIFORNIA
OHIO STATE CELLULAR PHONE COMPANY, INC. FLORIDA
OREGON RSA # 2, INC. OREGON
OREGON RSA # 3, INC. OREGON
* 50% or more owned companies Page 1
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UNITED STATES CELLULAR CORPORATION
SUBSIDIARY AND AFFILIATED COMPANIES
DECEMBER 31, 2002
<Table>
<Caption>
STATE OF
INCORPORATION
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OREGON RSA NO. 2 LIMITED PARTNERSHIP Partnership
OREGON RSA NO. 3 LIMITED PARTNERSHIP Partnership
PCS WISCONSIN, LLC WISCONSIN
PINE VALLEY WIRELESS, LP Partnership
PRIMECO REAL ESTATE HOLDINGS, LLC DELAWARE
PRIMECO SPECTRUM HOLDINGS, LLC DELAWARE
RACINE CELLULAR TELEPHONE COMPANY Partnership
ST. LAWRENCE SEAWAY RSA CELLULAR PARTNERSHIP Partnership
TENNESSEE RSA # 3, INC. DELAWARE
TENNESSEE RSA # 4 SUB 2, INC. TENNESSEE
TEXAHOMA CELLULAR, L.P. Partnership
TEXAS # 20 RURAL CELLULAR, INC. TEXAS
TEXAS INVCO OF RSA # 6, INC. DELAWARE
TOWNSHIP CELLULAR TELEPHONE, INC. DELAWARE
TULSA GENERAL PARTNER, INC. DELAWARE
UNITED STATES CELLULAR INVESTMENT COMPANY, INC. DELAWARE
UNITED STATES CELLULAR INVESTMENT CO. OF ALLENTOWN PENNSYLVANIA
UNITED STATES CELLULAR INVESTMENT COMPANY OF EAU CLAIRE WISCONSIN
UNITED STATES CELLULAR INVESTMENT COMPANY OF FRESNO, INC. CALIFORNIA
UNITED STATES CELLULAR INVESTMENT COMPANY OF OKLAHOMA CITY, INC. OKLAHOMA
UNITED STATES CELLULAR INVESTMENT COMPANY OF SANTA CRUZ, INC. CALIFORNIA
UNITED STATES CELLULAR INVESTMENT CORPORATION OF LOS ANGELES INDIANA
UNITED STATES CELLULAR OPERATING COMPANY LLC (fka UNITED STATES CELLULAR OPERATING COMPANY) DELAWARE
UNITED STATES CELLULAR OPERATING COMPANY OF BANGOR MAINE
UNITED STATES CELLULAR OPERATING COMPANY OF CEDAR RAPIDS DELAWARE
UNITED STATES CELLULAR OPERATING COMPANY OF DES MOINES IOWA
UNITED STATES CELLULAR OPERATING COMPANY OF DUBUQUE IOWA
UNITED STATES CELLULAR OPERATING COMPANY OF FT. PIERCE FLORIDA
UNITED STATES CELLULAR OPERATING COMPANY OF KENOSHA DELAWARE
UNITED STATES CELLULAR OPERATING COMPANY OF KNOXVILLE TENNESSEE
UNITED STATES CELLULAR OPERATING COMPANY OF LACROSSE, INC. WISCONSIN
UNITED STATES CELLULAR OPERATING COMPANY OF LEWISTON-AUBURN MAINE
UNITED STATES CELLULAR OPERATING COMPANY OF MANCHESTER-NASHUA, INC. NEW HAMPSHIRE
UNITED STATES CELLULAR OPERATING COMPANY OF MEDFORD OREGON
UNITED STATES CELLULAR OPERATING COMPANY OF TULSA, INC. OKLAHOMA
UNITED STATES CELLULAR OPERATING COMPANY OF WATERLOO IOWA
UNITED STATES CELLULAR OPERATING COMPANY OF YAKIMA WASHINGTON
UNITED STATES CELLULAR TELEPHONE COMPANY (GREATER KNOXVILLE), L.P. Partnership
UNITED STATES CELLULAR TELEPHONE OF GREATER TULSA, L.L.C. OKLAHOMA
UNIVERSAL CELLULAR FOR EAU CLAIRE MSA, INC. WISCONSIN
USCC DISTRIBUTION CO. DELAWARE
USCC FINANCIAL, LLC DELAWARE
USCC PAYROLL CORPORATION DELAWARE
USCC PURCHASE LLC DELAWARE
USCC REAL ESTATE CORPORATION DELAWARE
USCC WIRELESS INVESTMENT, INC. DELAWARE
USCCI CORPORATION DELAWARE
USCIC OF AMARILLO, INC. DELAWARE
USCIC OF DAYTONA, LLC DELAWARE
USCIC OF JACKSON, INC. DELAWARE
USCIC OF NORTH CAROLINA RSA # 1, INC. DELAWARE
USCIC OF OHIO RSA #9, INC. DELAWARE
USCIC OF PENNSYLVANIA 5, INC. DELAWARE
USCOC OF CHARLOTTESVILLE, INC. VIRGINIA
USCOC OF CORPUS CHRISTI, INC. TEXAS
USCOC OF CUMBERLAND, INC. MARYLAND
USCOC OF FLORIDA RSA #7, INC. DELAWARE
USCOC OF GREATER IOWA, INC PENNSYLVANIA
USCOC OF GREATER MISSOURI, LLC (fka PEACE VALLEY CELLULAR TELEPHONE COMPANY) DELAWARE
USCOC OF IDAHO RSA # 5, INC DELAWARE
USCOC OF ILLINOIS RSA # 1, INC. VIRGINIA
* 50% or more owned companies Page 2
</Table>
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UNITED STATES CELLULAR CORPORATION
SUBSIDIARY AND AFFILIATED COMPANIES
DECEMBER 31, 2002
<Table>
<Caption>
STATE OF
INCORPORATION
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USCOC OF ILLINOIS RSA # 4, INC. ILLINOIS
USCOC OF IOWA RSA # 1, INC. IOWA
USCOC OF IOWA RSA # 16, INC. DELAWARE
USCOC OF JACKSONVILLE, INC. NORTH CAROLINA
USCOC OF JACK-WIL, INC. DELAWARE
USCOC OF NEW HAMPSHIRE RSA # 2, INC. DELAWARE
USCOC OF NORTH CAROLINA RSA # 7, INC. NORTH CAROLINA
USCOC OF OKLAHOMA RSA # 10, INC. OKLAHOMA
USCOC OF OREGON RSA # 5, INC. DELAWARE
USCOC OF PENNSYLVANIA RSA #10-B2, INC. DELAWARE
USCOC OF RICHLAND, INC. WASHINGTON
USCOC OF ROCKFORD, INC. ILLINOIS
USCOC OF SOUTH CAROLINA RSA # 4, INC. SOUTH CAROLINA
USCOC OF ST. JOSEPH, INC. DELAWARE
USCOC OF TALLAHASSEE, INC. FLORIDA
USCOC OF TEXAHOMA, INC. TEXAS
USCOC OF VICTORIA, INC. TEXAS
USCOC OF VIRGINIA RSA # 2, INC. VIRGINIA
USCOC OF VIRGINIA RSA # 3, INC. VIRGINIA
USCOC OF WASHINGTON 4, INC. DELAWARE
USCOC OF WILMINGTON, INC. NORTH CAROLINA
VERMONT RSA NO. 2-B2, INC. DELAWARE
VICTORIA CELLULAR CORPORATION TEXAS
VICTORIA CELLULAR PARTNERSHIP Partnership
VIRGINIA RSA # 4, INC. VIRGINIA
VIRGINIA RSA # 7, INC. VIRGINIA
WARD BUTTE JOINT VENTURE Partnership
WASHINGTON RSA # 5, INC. WASHINGTON
WATERLOO / CEDAR FALLS CELLTELCO PARTNERSHIP Partnership
WESTELCOM CELLULAR, INC. NEW YORK
WESTERN SUB-RSA LIMITED PARTNERSHIP Partnership
WILMINGTON CELLULAR PARTNERSHIP Partnership
WILMINGTON CELLULAR TELEPHONE CO. NORTH CAROLINA
WOODLAND WIRELESS, LP Partnership
X-10 WIRELESS, L.P. Partnership
YAKIMA MSA LIMITED PARTNERSHIP Partnership
YAKIMA VALLEY PAGING LIMITED PARTNERSHIP Partnership
* 50% or more owned companies Page 3
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