AT&T, Inc. provides telecommunication services and products, including wireless communications, local exchange services, long-distance services, data/broadband and Internet services, video services, telecommunications equipment, managed networking and wholesale services. It operates business through two reportable segments: Wireless and Wireline. The Wireless segment operates comprehensive range of nationwide wireless voice and data communications services in a variety of pricing plans, including postpaid and prepaid service plans. It also sells handsets, wirelessly enabled computers and personal computer wireless data cards manufactured by various suppliers for use with voice and data services. The Wireline segment provides both retail and wholesale communication services domestically and internationally. Its wireline services into three product-based categories: voice, data and other. The security service includes business continuity and disaster recovery services as well as premise and network based security products. The company was founded in 1983 and is headquartered in Dallas, TX.