How do I service a Motorola cellular phone?

Cellular One is the trade name of the cellular service offered by several mobile phone providers, most recently Dobson Cellular. It was originally the trade name of one of the first mobile telephone service providers. In 1977, the American Radio Telephone Service and Motorola formed Cellular One to offer service to the Baltimore/Washington D.C. area. In 1984, cellular service began in the Baltimore/DC area.