AT&T;, Alltel, T Mobile, Verizon Wireless, U.S. Cellular, Sprint, Nextel, Boost, Cellcom, Cellular One, Cellular South, Cincinnati Bell, nTelos, Virgin Mobile, ACS Wireless, Bluegrass, Centennial, Cox Communications, ECIT - Cellular One of East Central Illinois, EKN - Appalachian Wireless, GCI Communications, Immix - PC Management, Inland Cellular, IVC - Illinois Valley Cellular, Nex-Tech Wireless, RCC/Unicel, Revol, RINA/All West Wireless, RINA/CTC Telecom-Cambridge, RINA/FMTC-Farmers Mutual Telephone Co., RINA/Nucla-Naturita Telephone Co., RINA/Silverstar, RINA/Snake River PCS, RINA/South Central, RINA/Syringa Wireless, RINA/UBET, West Central Wireless