AT&T Inc. is a major American telecommunications company headquartered in Dallas, Texas. It provides a wide range of services, including mobile and fixed-line telephone services, broadband internet, and digital television through its subsidiary, DirecTV. AT&T is one of the largest providers of wireless services in the United States. Founded in 1885, AT&T has a long history in the telecommunications industry. The company has undergone several mergers and acquisitions, including the notable merger with Time Warner in 2018, which expanded its reach into media and entertainment. Today, AT&T continues to innovate in areas like 5G technology and streaming services.