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Cellular One
Cellular One is the trademarked brand name used by several cellular service providers in the United States and Bermuda. The brand was sold to Trilogy Partners by AT&T in 2008 shortly after AT&T had completed its acquisition of Dobson Communications. Cellular One was originally the trade name of one of the first mobile telephone service providers.
==History==
In 1977, the American Radio Telephone Service and Motorola formed Cellular One to offer services to the Baltimore/Washington, D.C., area. In 1984, cellular service began in the Baltimore/DC area.
The Baltimore/DC service, and the rights to the name Cellular One, were sold from Metromedia to Southwestern Bell in 1987. In 1989, Southwestern Bell Mobile Systems and McCaw Communications formed a partnership called Cellular One Group. In 1992, Vanguard Cellular Systems joined the group. In 1995, Cellular One opened up membership in the partnership to all A-side providers. Under the US AMPS allocation, A-side providers were independent wireless operators, while B-side providers were usually affiliates of the local landline telephone company. A new slogan was also developed, "Cellular One: Clear Across America", recognizing cellular's national reach, although there were very few national plans at this time. In 1995, Cellular One affiliates had over 5 million customers and affiliates' towers served approximately 69% of the US population.〔http://web.archive.org/web/19980120092823/cellularone.com/PR_network.html〕 Also in 1995, SNET joined the partnership. Not all A-side carriers participated: most notably, L.A. Cellular, in the nation's second largest market, Los Angeles, never participated in Cellular One, and did not have agreements with Cellular One for some time. AT&T purchased McCaw Cellular in 1994; shortly thereafter, AT&T renamed the former McCaw providers "AT&T Wireless" and dropped out of the partnership. Western Wireless joined the partnership in 1999, and in 2001, the Cellular One group name became the sole property of Western Wireless.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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