AT&T Inc. provides telecommunications services to consumers, businesses, and other providers in the United States and internationally. The company operates in three segments: Wireless, Wireline, and Other. The Wireless segment offers various wireless voice and data communication services, including local wireless communications services, long-distance services, and roaming services. It also sells various handsets, wirelessly enabled computers, and personal computer wireless data cards through its owned stores, agents, or third-party retail stores; and accessories comprising carrying cases, hands-free devices, batteries, battery chargers, and other items to consumers, as well as to agents and third-party distributors. The Wireline segment provides data services, such as switched and dedicated transport, Internet access and network integration, U-verse services, and data equipment; businesses voice applications over IP-based networks; and digital subscriber lines, dial-up Internet access, private lines, managed Web-hosting services, packet services, enterprise networking services, and Wi-Fi services, as well as local, interstate, and international wholesale networking capacity to other service providers. This segment also offers voice services consisting of local and long-distance services for various business applications, which include sales, reservation centers, or customer service centers; and wholesale switched access service to other service providers. The Other segment provides application management, security services, integration services, customer premises equipment, outsourcing, government-related services, and satellite video services. The company was formerly known as SBC Communications Inc. and changed its name to AT&T Inc. in November 2005. AT&T, Inc. was founded in 1983 and is based in Dallas, Texas.

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