Ameritech, originally known as American Information Technologies Corporation, is a telecommunications company that operated in the United States from 1984 to 2001. Primarily focusing on providing telephone services, Ameritech was one of the seven Regional Bell Operating Companies formed as a result of the divestiture of AT&T's local telephone operations.
Ameritech served as the regional Bell operating company for the Midwest region, covering the states of Illinois, Indiana, Michigan, Ohio, and Wisconsin. It offered a wide range of telecommunications services to residential and business customers, including local and long-distance voice services, data transmission, internet connectivity, and various other telecommunications solutions.
As a Regional Bell Operating Company, Ameritech was subject to regulatory oversight by the Federal Communications Commission (FCC) and other regulatory bodies. It operated and maintained the local telecommunications infrastructure, including telephone lines, switching offices, and network facilities within its designated service area.
In 1999, Ameritech was acquired by SBC Communications (later renamed AT&T Inc.), which resulted in the convergence and consolidation of several regional Bell operating companies under the AT&T brand. The acquisition of Ameritech significantly expanded the AT&T network and customer base in the Midwest region.
Throughout its existence, Ameritech played a vital role in connecting people and businesses, providing essential telecommunications services, and contributing to the development of the telecommunications industry in the United States.
