Major Carriers: AT&T, Verizon Wireless, Sprint, T-Mobile
Minor Carriers: U.S. Cellular, Boost Mobile, MetroPCS, Virgin Mobile, Alaska Communications Systems (ACS), Appalachian Wireless (EKN), Bluegrass Cellular, Cellular One of East Central, IL (ECIT), Cellular One of Northeast Pennsylvania, Cricket, Coral Wireless (Mobi PCS), COX, Cross, Element Mobile (Flat Wireless), Epic Touch (Elkhart Telephone), GCI, Golden State, Hawkeye (Chat Mobility), Hawkeye (NW Missouri), Illinois Valley Cellular, Inland Cellular, iWireless (Iowa Wireless), Keystone Wireless (Immix Wireless/PC Man), Mosaic (Consolidated or CTC Telecom), Nex-Tech Wireless, NTelos, Panhandle Communications, Pioneer, Plateau (Texas RSA 3 Ltd), Revol, RINA, Simmetry (TMP Corporation), Thumb Cellular, Union Wireless, United Wireless, Viaero Wireless, and West Central (WCC or 5 Star Wireless).