AT&T Mobility, LLC, commonly known as AT&T Wireless and marketed as simply AT&T, is a major American telecommunications company. Headquartered in Brookhaven, Georgia, adjacent to Atlanta, the company was formed in April 2000 as Cingular Wireless LLC and became a wholly owned subsidiary of AT&T Inc. in December 2006, rebranding as AT&T Mobility in January 2007. As of March 31, 2026, AT&T Mobility is the third-largest wireless carrier in the United States, serving 109.3 million subscribers. Employee counts vary across sources, with some indicating approximately 31,000 to 43,350 total employees, while its parent, AT&T Inc., has an estimated 149,900 employees.
AT&T Mobility's core operations revolve around providing comprehensive wireless communication services. This includes mobile telephony, wireless broadband, mobile internet services, and voice, messaging, and data connectivity for mobile devices. The company also offers prepaid mobile phone services under the AT&T PREPAID brand and provides enterprise mobility solutions that support businesses with network management, device compatibility, and secure data transmission.
Based on available patent litigation data, AT&T Mobility functions as an operating company that primarily defends against patent infringement claims. The company has no tracked cases as a plaintiff and one tracked case as a defendant. This posture indicates that AT&T Mobility is typically a target of patent assertions rather than an entity actively asserting its own patent portfolio in court.
The sole tracked case involving AT&T Mobility is Lemko Corporation v. AT&T Inc. et al., where AT&T Mobility is listed as a defendant. This case, filed on March 17, 2025, is in the U.S. District Court for the Eastern District of Texas, a venue known for its history of hosting numerous patent infringement lawsuits.