AT&T Communications

AT&T Communications - East, Inc. was a holding company for the 23 subsidiaries that provide interexchange carrier and long distance telephone services owned by AT&T. The American Telephone & Telegraph Long Lines wire, cable, and microwave radio relay network provided long-distance transport services to AT&T and its customers from the late 1940s to the early 1980s. Formal opening of the coast-to-coast connection was on August 17, 1951. A sophisticated achievement, Long Lines provided computerized reconfiguration of microwave circuits coast-to-coast via AT&T's network control center in New York City. By the 1970s, Long Lines carried 95% of all long-haul television traffic and 70% of intercity telephone calls in the United States. Before...