| Country | Carrier/s | Country | Carrier/s | Country | Carrier/s |
|---|---|---|---|---|---|
| Afghanistan | Etisalat, MTN | Ghana | Vodafone, Airtel | Oman | Nawras, Oman Mobile |
| Albania | Vodafone | Gibraltar | Gibtel | Pakistan | Pak Telecom, Warid Telecom |
| Algeria | Djezzy | Greece | Wind Hellas, Cosmote | Panama | Claro, Digicel |
| American Samoa | Greenland | Tele | Paraguay | Claro, Vox, Nucleo | |
| Andorra | Servei De Telecomunicacions | Grenada | Cable & Wireless, Lime | Peru | Telefonica |
| Anguilla | Cable & Wireless, Lime | Guam | DoCoMo | Philippines | Globe Telecom, Digital Mobile/Sun Cellular |
| Antigua & Barbuda | Cable & Wireless, Lime | Guatemala | Telefonica | Poland | Orange, P4 Play |
| Argentina | Claro, Telefonica Moviles | Guernsey | JT Wave | Portugal | Vodafone |
| Armenia | K-Telecom VivaCell MTS | Guyana | Digicel | Puerto Rico | Claro, AT&T |
| Aruba | Digicel | Haiti | Digicel | Qatar | QTEL |
| Australia | Vodafone, Telstra | Honduras | Claro | Romania | Vodafone |
| Austria | 3, T-Mobile | Hong Kong | CSL, Hong Kong Telecom, Smartone | Russia | MTS, RoCC Tele2 |
| Azerbaijan | Azerfon, Bakcell | Hungary | Vodafone | San Marino | 3, Vodafone |
| Bahamas | Bahamas Telecom Co | Iceland | Vodafone | Saudi Arabia | Mobily, MTC Zain |
| Bahrain | Batelco | India | Bharti Airtel, Reliance, Vodafone | Senegal* | SenTel |
| Barbados | Digicel, Cable & Wireless, Lime | Indonesia | Hutchison, Axis | Serbia | Telenor |
| Belarus* | TeleSystems | Iran | MTN | Seychelles | Cable & Wireless |
| Belgium | KPN, Mobistar | Iraq | Zain | Sierra Leone | Airtel |
| Benin | Glo | Ireland | Vodafone, 3, O2 | Singapore | M1, StarHub, Singapore Telecom |
| Bermuda | Digicel, M3 Wireless | Isle Of Man | Manx | Slovakia | Slovak Telekom |
| Bolivia | Nuevatel | Israel | Pelephone | Slovenia | Tusmobil |
| Bosnia & Herzegovina | M Tel | Italy | Vodafone, 3 | South Africa | Vodacom |
| Brazil | Brasil Telecom, Vivo | Ivory Coast | MOOV, MTN | South Korea* | SK Telecom |
| British Virgin Islands | Caribbean Cellular (CCT), Digicel | Jamaica | Digicel, Cable & Wireless, Lime | Spain | Vodafone, Telefonica, Xfera (Yoigo) |
| Brunei Darussalam | Bmobile | Japan | DoCoMo | Sri Lanka | Etisalat |
| Bulgaria | MobilTel | Jersey | Jersey Telecom | St Barthelemy | |
| Cambodia | Jordan | Orange | St Kitts & Nevis | Digicel, Cable & Wireless, Lime | |
| Canada (**) | Rogers Wireless, Fido, Bell Mobility, Telus | Kazakhstan | Beeline Kar-Tel | St Lucia | Cable & Wireless, Lime |
| Cape Verde | T+ | Kenya | Airtel | St Vincent & The Grenadines | Cable & Wireless, Lime |
| Cayman Islands | Digicel, Cable & Wireless, Lime | Kuwait | Zain, VIVA | Sudan | Zain |
| Chile | Telefonica, Claro | Laos | Suriname | Digicel | |
| China | China Unicom, China Mobile | Latvia | Latvian Mobile | Sweden | 3, TeliaSonera |
| Colombia | Telefonica | Lebanon | MIC | Switzerland | Swisscom |
| Congo | Celtel, Vodacom | Liechtenstein | Orange, Mobikom | Taiwan | Chunghwa Telecom, Taiwan Mobile |
| Costa Rica | ICE | Lithuania | Omnitel | Tanzania | Airtel, Zanzibar Telecom |
| Croatia | Tele2 | Luxembourg | P&T Lux | Thailand | True Move |
| Cruise Ships (Select Ships Only)* | Macau | SmarTone Mobile, CTM | Trinidad & Tobago | Digicel | |
| Cuba | Cubacel (ETECSA) | Madagascar | Telma | Tunisia | Orange |
| Cyprus | Vodafone (CYTA) | Malaysia | Celcom, Digi Telecom, Maxis Mobile | Turkey | Vodafone |
| Czech Republic | Vodafone, O2 | Maldives | Wataniya | Turks & Caicos | Cable & Wireless, Lime |
| Denmark | 3, Telia Danmark | Malta | Vodafone | Uganda | Airtel, Orange |
| Dominica | Cable & Wireless, Lime | Mauritius | MTML | Ukraine | JSC Ukrtelecom |
| Dominican Republic | Claro | Mexico | Movistar, Iusacell | United Arab Emirates | Etisalat |
| Ecuador | Otecel | Moldova | Orange | United Kingdom | O2, Vodafone, Orange, T-mobile |
| Egypt | Vodafone | Monaco | Orange | United States (**) | T-Mobile, AT&T |
| El Salvador | Claro, Digicel, Telefonica | Mongolia | Mobicom | Uruguay | Claro, Telefonica Moviles |
| Estonia | AS EMT | Montenegro | M Tel | Us Virgin Islands | AT&T |
| F.Y.R. Macedonia | VIP | Montserrat | Cable & Wireless, Lime | Uzbekistan | Unitel |
| Faroe Islands | Faroese Telecom | Morocco | WANA | Venezuela | Telcel |
| Fiji | Digicel | Mozambique | Vodacom | Vietnam | MobiFone, Viettel |
| Finland | TeliaSonera, Alands | Nepal | Western Samoa | Digicel | |
| France | Orange | Netherlands | Vodafone | Zambia* | MTN |
| Gambia | Qcell | New Zealand | Vodafone | ||
| Georgia | Geocell | Nigeria | MTN, Glo Mobile, Zain | ||
| Germany | Vodafone, 02 | Norway | NETCOM |
* Enter 2 followed by the PIN in Belarus, Senegal, South Korea, Zambia