AT&T is a telecommunications company that provides wireless communications, local exchange, and long-distance services for consumers and businesses in the United States and internationally. The company offers its services in two segments: wireless and wireline. Its wireless segment offers various wireless voice, data, text, and other services. This segment sells various handsets, wirelessly-enabled computers, and wireless data cards for personal computers through its owned stores, agents, and third-party retail stores. It also sells accessories comprising carrying cases, hands-free devices, batteries, battery chargers, and other items to consumers as well as to agents and third-party distributors. As of December 31, 2013, this segment served approximately 110 million wireless subscribers.