AT&T Incorpoarated is a telecommunications company. It offers wireless voice and data communications services, and sells handsets, wireless data cards, wireless computing devices, and hands-free devices through its own and third-party retail stores. It markets its services and products under the AT&T, Cricket, AT&T PREPAID, and AT&T Fiber brand names. AT&T Inc. was incorporated in 1983 and is headquartered in Dallas, TX.