Network Covrage
| Country | Network |
|---|---|
| Colombia (+57) | Colombia Movil SA (Tigo) COMCEL 3GSM Movistar |
| Comoros (+269) | Comores Telecom |
| Congo (+242) | CelTel MTN (Libertis) |
| Congo, Democratic Republic (+243) | Celtel Supercell TIGO(Oasis) Vodacom (CWN) |
| Cook Islands (+682) | Telecom Cook Islands |
| Costa Rica (+506) | ICE |
| Croatia (+385) | T-Mobile (HT Mobile,Cronet,Croatian Tele.) Tele2 VipNet |
| Cuba (+53) | C-COM (Etecsa) Cubacel |
| Cyprus (+357) | Areeba CYTA (Vodafone) |
| Czech Republic (+420) | T-Mobile (Radiomobil) Telefonica O2 (EuroTel) Vodafone Czech Republic a.s. (OSKAR) |