AT&T is one of the world's largest telecommunications companies. It operates extensively in the United States and 11 Latin American countries. In 2016, AT&T expanded its portfolio by acquiring DirecTV and Time Warner, solidifying its position as a leader in consumer entertainment services
AT&T reorganized into four main units: Communications, including consumer and business, AT&T Mobility, and consumer entertainment services; WarnerMedia, including Turner cable networks, Warner Bros. film and television production, and HBO; AT&T Latin America, consisting of wireless service in Mexico and video in Latin America and the Caribbean; and Advertising and Analytics.