. . . Cingular Wireless LLC Exhibits - Subsidiaries of the Registrant EXHIBIT 21 The following companies are doing business under the trade name Cingular or Cingular Wireless.
State As of December 31, 2003 Organized ----------------------- -------------- CINGULAR WIRELESS LLC Salmon PCS LLC DE Cingular Wireless Consolidated Holdings, Inc. DE Peachtree Insurance Company, Ltd. (Bermuda) Bermuda Cingular Wireless Finance Corp. DE Cellular Retail Corporation DE Orlando CGSA Holdings, Inc. DE Cingular Wireless Aviation Holdings, LLC DE SBC Wireless LLC DE Southwestern Bell Mobile Systems, LLC DE Champaign CellTelCo DC Cingular Pennsylvania LLC DE Worcester Telephone Company MA Worcester Telephone Supply, LLC DE Southwestern Bell Wireless, LLC DE SWBW B-Band Development, LLC DE Texas RSA 20B2 Limited Partnership TX San Antonio SMSA Limited Partnership DE McAllen-Edinburg-Mission SMSA Limited Partnership DE McAllen-Edinburg-Mission SMSA Holdings, LLC DE McAllen-Edinburg-Mission SMSA Supply, LP DE Cingular Wireless of Texas RSA #11 Limited Partnership DE Cingular Wireless of Texas RSA #16 Limited Partnership DE Texas RSA #16 Holdings, LLC DE Texas RSA #16 Supply, LLC DE Eastern Missouri Cellular Limited Partnership DE Eastern Missouri Cellular Holdings, Inc. DE Eastern Missouri Cellular Supply Limited Partnership DE Kansas City SMSA Limited Partnership DE Kansas City SMSA Holdings, Inc. DE Kansas City SMSA Cellular Supply Limited Partnership DE Corpus Christi SMSA Limited Partnership DE Dallas SMSA Limited Partnership DE Dallas SMSA Holdings, LLC DE Dallas SMSA Supply Limited Partnership DE Oklahoma City SMSA Limited Partnership DE Oklahoma City SMSA Supply, LLC DE Lubbock SMSA Limited Partnership DE Lubbock SMSA Holdings, LLC DE Lubbock SMSA Supply Limited Partnership DE St. Joseph SMSA Limited Partnership DE Topeka SMSA Limited Partnership DE Texas RSA 6 Limited Partnership DE Missouri RSA 8 Limited Partnership DE Texas RSA 7B1 Limited Partnership DE Missouri RSA 9B1 Limited Partnership DE Texas RSA 9B1 Limited Partnership DE Oklahoma RSA 3 Limited Partnership DE Texas RSA 18 Limited Partnership DE Oklahoma RSA 9 Limited Partnership DE Texas RSA 19 Limited Partnership DE Texas RSA 20B1 Limited Partnership DE
Wichita SMSA Limited Partnership DE Texas RSA 9B4 Limited Partnership DE Missouri RSA 11/12 Limited Partnership DE Missouri RSA 11/12 Holdings, LLC DE Missouri RSA 11/12 Supply Limited Partnership DE Texas RSA 10B1 Limited Partnership DE Houston Cellular Telephone Company, LP TX Galveston Cellular Partnership TX Galveston Cellular Telephone Company DE Galveston Cellular, LLC DE Cingular Wireless Galveston, LP DE Texas RSA 10B3 Limited Partnership DE Cingular Wireless of Austin Limited Partnership DE Austin Cellular Supply Limited Partnership DE Austin Cellular Holdings, LLC DE Cingular Wireless Spectrum Sub A LLC DE Cingular Wireless Spectrum Sub B LLC DE Pacific Telesis Mobile Services, LLC DE Pacific Bell Wireless Northwest, LLC DE Houma-Thibodaux Cellular Partnership DC Houma-Thibodaux Cellular Supply, LLC DE GSM Facilities LLC [Joint Control - 50%] DE Pacific Bell Wireless, LLC NV Omnipoint Facilities Network 2, LLC DE Ameritech Mobile Communications, LLC DE Ameritech Wireless Communications, LLC DE Detroit SMSA Limited Partnership DE Milwaukee SMSA Limited Partnership DE Milwaukee SMSA Supply, LLC DE Madison SMSA Limited Partnership DE Madison SMSA Supply, LLC DE Cincinnati SMSA Limited Partnership DE MI RSA 5, LLC DE SBC Wireless - Puerto Rico, LLC DE Beach Holding Corporation DE CCPR Paging, Inc. DE CCPR Services, Inc. DE San Juan Cellular Telephone Company DC CCPR of The Virgin Islands, Inc. DE Cingular Supply, L.P. DE Cingular Wireless Employee Services, LLC DE RAM Communications Group, LLC DE Cingular Interactive L.P. DE BellSouth Mobility LLC GA BellSouth Personal Communications, LLC DE Cingular Real Estate Holdings of The Southeast, LLC GA Orlando SMSA Limited Partnership DE Chattanooga MSA Limited Partnership DE Chattanooga MSA Holdings, Inc. DE Chattanooga MSA Supply Limited Partnership DE Decatur RSA Limited Partnership DE Lafayette MSA Limited Partnership DE Lafayette MSA Supply, LLC DE Louisiana RSA No. 7 Cellular General Partnership DE Louisiana RSA No. 7 Cellular Supply, LLC DE Louisiana RSA No. 8 Limited Partnership DE Acadiana Cellular General Partnership DE
Acadiana Cellular Supply, LLC DE Westel-Indianapolis LLC DE Bloomington Cellular Telephone Company DE Cellular Radio of Chattanooga Florida Cellular Service, LLC GA Jacksonville MSA Limited Partnership DE Jacksonville MSA Supply, LLC DE Florida RSA No. 2B (Indian River) Limited Partnership DE Georgia RSA No. 1 Limited Partnership DE Georgia RSA No. 1 Supply, LLC DE Georgia RSA No. 2 Limited Partnership DE Georgia RSA No. 2 Supply, LLC DE Georgia RSA No. 3 Limited Partnership DE Georgia RSA No. 3 Supply, LLC DE Northeastern Georgia RSA Limited Partnership DE Cingular Real Estate Holdings of Georgia, LLC GA Cingular Real Estate Holdings of Atlanta, LLC GA Cingular Real Estate Holdings of Louisiana, LLC GA Cingular Real Estate Holdings of Kentucky, LLC GA Cingular Westel Real Estate Holdings, LLC GA Cingular Wireless Roadrunner LLC DE GSM Corridor, LLC [Joint Control - 50%] DE Roadrunner Operating LLC DE Cingular New England License Sub LLC DE Roadrunner Cingular License Sub, LLC DE AT&T Wireless License Sub LLC DE AT&T Wireless Roadrunner Sub I, LLC DE