CINGULAR WIRELESS LLC EXHIBITS - Powers of Attorney EXHIBIT 24 POWERS OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS: WHEREAS, CINGULAR WIRELESS LLC, a Delaware limited liability company (the "Company"), proposes to file with the Securities and Exchange Commission, under the Securities Exchange Act of 1934, as amended, its Annual Report on Form 10-K for the year ended December 31, 2004. NOW THEREFORE, each of the undersigned hereby constitutes and appoints Peter A. Ritcher, Gregory T. Hall, Sean Foley and Philip Teske, and each of them, as attorneys for him in his name, place and stead in his capacities in the Company, to execute and cause to be filed the Annual Report and thereafter to execute and file any amendment or supplement thereto deemed by them to be necessary or desirable, hereby giving and granting to said attorneys full power and authority (including substitution and revocation) to do and perform all and every act and thing whatsoever requisite and necessary to be done in and about the premises as fully, to all intents and purposes, as he might or could do if personally present at the doing thereof, hereby ratifying and confirming all that said attorneys may or shall lawfully do, or cause to be done, by virtue hereof. IN WITNESS WHEREOF, each of the undersigned has hereunto set his hand on the date indicated. /s/ Stanley T. Sigman March 7, 2005 - ------------------------------- Stanley T. Sigman President and Chief Executive Officer (Principal Executive Officer) /s/ Peter A. Ritcher March 7, 2005 - ------------------------------- Peter A. Ritcher Chief Financial Officer (Principal Financial Officer) /s/ Gregory T. Hall March 7, 2005 - ------------------------------- Gregory T. Hall Controller (Principal Accounting Officer) /s/ Richard A. Anderson March 7, 2005 - ------------------------------- Richard A. Anderson Class B Director /s/ Ronald M. Dykes March 7, 2005 - ------------------------------- Ronald M. Dykes Chairman of the Board and Class B Director /s/ Mark L. Feidler March 7, 2005 - ------------------------------- Mark L. Feidler Class B Director CINGULAR WIRELESS LLC EXHIBITS - Powers of Attorney EXHIBIT 24 /s/ Richard G. Lindner March 7, 2005 - ------------------------------- Richard G. Lindner Class B Director /s/ Randall L. Stephenson March 7, 2005 - ------------------------------- Randall L. Stephenson Class B Director /s/ Rayford Wilkins Jr. March 7, 2005 - ------------------------------- Rayford Wilkins, Jr. Class B Director