AT&T

AT&T Inc. is a leading American multinational telecommunications company based in Dallas, Texas. It ranks as the third-largest telecommunications firm globally by revenue and is the largest fiber internet provider in the United States. The company has a rich history, evolving from the American Telephone and Telegraph Company, which was linked to Alexander Graham Bell's invention of the telephone.

AT&T offers a wide range of telecommunications and technology services. These include wireless voice and data communications, broadband internet through AT&T Fiber and DSL, local and long-distance phone services, and entertainment options like IP-based and satellite television. The company also provides enterprise solutions, messaging platforms, and directory services. AT&T serves various customer segments, including residential, business, and wholesale clients, with a presence in the U.S., Europe, Mexico, and Latin America. Its major brands include AT&T, Cricket Wireless, and AT&T Business.