InterCel, Inc. was incorporated in Delaware in April 1991 and became the owner of the assets of both Interstate Cellular, Inc. and WHI Partnership.

In October 1991, InterCel, Inc. became a publicly traded company, offering stock on the NASDAQ under the ticker symbol ICEL.

InterCel acquired Unicell, a provider of cellular communications service in Maine, in January 1993.

In February 1994, InterCel and other investors formed Powertel PCS Partners L.P. to develop, construct and operate a GSM mobile cellular network that would provide services in nine Southeastern states.

In March 1995, Powertel PCS Partners submitted winning bids for wireless spectrum covering parts of nine Southeastern states.