Dobson Cellular Systems, Inc. now part of AT&T Mobility, was a wireless telecommunications provider operating in several regions of the United States, including Alaska, Arizona, California, Kansas, Kentucky, Maryland, Michigan, Minnesota, Missouri, New York, Ohio, Oklahoma, Pennsylvania, Texas, Virginia, West Virginia and Wisconsin.

Formed in the 1920s, Dobson Communications originally operated a small wireline telephone network in Oklahoma.

[citation needed] On June 29, 2007 AT&T Inc. announced that they had reached an agreement to purchase Dobson Cellular division.

The Federal government prevented AT&T from taking certain Dobson markets In Texas, Oklahoma, and Kentucky along the Ohio border and the I-75 corridor, due to the potential monopoly this would create in this area.

Dobson had recently upgraded a majority of its GSM/GPRS towers with an EDGE overlay, providing an even faster data rate for their customers.