AT&T Mobility LLC is a wholly owned subsidiary of AT&T

AT&T

AT&T Inc. is an American multinational telecommunications corporation headquartered in Whitacre Tower, Dallas, Texas, United States. It is the largest provider of mobile telephony and fixed telephony in the United States, and is also a provider of broadband and subscription television services...

 that provides wireless services to 100.7 million subscribers in the United States, Puerto Rico and the U.S. Virgin Islands. AT&T Mobility is the second largest wireless

Wireless

Wireless telecommunications is the transfer of information between two or more points that are not physically connected. Distances can be short, such as a few meters for television remote control, or as far as thousands or even millions of kilometers for deep-space radio communications...

 telecommunications provider in the United States behind Verizon Wireless

Verizon Wireless

Cellco Partnership, doing business as Verizon Wireless, is one of the largest mobile network operators in the United States. The network has 107.7 million subscribers as of 2011, making it the largest wireless service provider in America....

, which has 107.7 million customers as of the third quarter of 2011. AT&T Mobility is headquartered in the Lenox Park area of DeKalb Co.