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About AT&T Wireless Wireless
AT&T Mobility LLC branded and referred to as AT&T (formerly Cingular Wireless LLC), is a wholly owned subsidiary of AT&T Inc. that provides wireless services to 107 million subscribers in the United States, including Puerto Rico and the U.S. Virgin Islands. AT&T Mobility is the second largest wireless telecommunications provider in the United States and Puerto Rico, behind Verizon Wireless, which serves 115.78 million customers as of the fourth quarter of 2012. AT&T Mobility is headquartered in the Lenox Park area of DeKalb Co. Georgia, just outside Atlanta.
Originally Cingular Wireless LLC from 2000 to 2007, a joint venture between SBC Communications and BellSouth, the company acquired the old AT&T Wireless in 2004; SBC later acquired the original AT&T and re-branded as “AT&T”. Cingular became wholly owned by AT&T in December 2006 as a result of AT&T’s acquisition of BellSouth.