The quality of U.S. Cellular’s network enables the company to provide an excellent communications experience to its customers. In 2007, the company received its fourth consecutive award for "Highest Call Quality Performance Among Wireless Cell Phone Users in North Central Region" in J.D. Power and Associates’ Wireless Call Quality Performance Study^SM — Volume 2. U.S. Cellular also was voted the top contract/postpay wireless provider by readers of PC Magazine.

To further improve the call experience for its customers, U.S. Cellular invested $565.5 million in its network and infrastructure in 2007, building 434 new cell sites, increasing capacity at existing cell sites and switches, building new retail stores and remodeling existing locations, and enhancing its office data systems.

As of December 31, 2007, U.S. Cellular had a total of 6,383 cell sites and 400 U.S. Cellular-operated retail stores, and 1,300 locations, representing agents, dealers, and non-company retailers.