The Guinness Records claims 'the Most durable mobile phone number (cellular phone number) David Contorno, of Lemont, Illinois, has owned and used the same mobile telephone number since 2 August 1985. During the SBC Communications merger its First and Original network in Chicago was sold to GTE (which later became Verizon Wireless).Īmeritech Mobile Communications exists today as Ameritech Mobile Communications, LLC d/b/a AT&T Mobility. Originally Ameritech used CDMA as its network technology choice, but then converted to TDMA to be compatible with SBC's other wireless networks that were mostly using TDMA. Following the SBC Communications merger, Ameritech's wireless network was integrated and added to SBC's Wireless network. Originally named Ameritech Mobile Communications, it later became known as Ameritech Cellular.īefore the SBC Merger Ameritech sold some of its interests to GTE dba Verizon. From around 1986, Cincinnati Bell held a 45% stake in the company. The company was a division of Ameritech which, as of January 1, 1984, was the holding company of Illinois Bell, Michigan Bell, Wisconsin Bell, Ohio Bell, and Indiana Bell, which provides landline service to the Great Lakes region. Cell service became publicly available in Chicago on October 13, 1983. JSTOR ( March 2015) ( Learn how and when to remove this template message)Īmeritech Mobile Communications, LLC was the first company in the United States to provide cellular mobile phone service to the general public.Unsourced material may be challenged and removed.įind sources: 'Ameritech Cellular' – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.

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