AT&T is the largest telecommunications company in the United States and one of the largest in the world.
AT&T has IP-based network capabilities, assets, and resources that are widely regarded as unsurpassed in the marketplace, enabling the company to lead the industry in using the language of the Internet to deliver innovative services that integrate voice, data and video.
AT&T serves millions of customers around the globe, including global, national, mid-size, regional, and government customers. It delivers an unsurpassed portfolio of traditional and IP-based voice, broadband Internet, data transport, wireless and video services.