History of AT&T's Long Lines Division: From Telephone Infrastructure to Modern AT&T

Summary

The article provides a historical overview of AT&T's Long Lines division, which served as the long-distance infrastructure connecting regional Bell companies and independent telephone companies from the early telephone era through AT&T's 1984 divestiture. It explains how Long Lines continued as AT&T's core after the breakup until Southwestern Bell purchased it in 2005, forming the modern AT&T. The content traces the evolution of telecommunications infrastructure and corporate structure in the United States.