| Country | Carrier/s | Country | Carrier/s | Country | Carrier/s |
|---|---|---|---|---|---|
| Albania | Vodafone | Greenland | Tele | Oman | Nawras, Oman Mobile |
| Andorra | Servie De Telecomunicacio | Guam | Panama | Digicel | |
| Argentina | Claro, Telefonica Moviles | Guernsey | JT Wave | Peru | America Movil |
| Armenia | K-Telecom VivaCell MTS | Haiti | Digicel | Philippines | Globe Telecom |
| Aruba | Digicel | Honduras | Tigo | Poland | Orange, P4 Play |
| Australia | Vodafone, Telstra | Hong Kong | CSL, Hong Kong Telecom, Smartone | Portugal | Vodafone |
| Austria | 3, T-Mobile | Hungary | Vodafone | Puerto Rico | Claro |
| Azerbaijan | Azerfon, Bakcell | Iceland | Siminn | Qatar | QTEL |
| Bahamas | Bahamas Telecom Co | India | Reliance | Romania | Vodafone |
| Bahrain | batelco | Indonesia | Hutchison, Axis | Russia | MTS |
| Belgium | KPN, Mobistar | Ireland | Vodafone, 3, O2 | San Marino | 3, Vodafone |
| Bermuda | Digicel, M3 Wireless | Isle Of Man | Manx | Saudi Arabia | Mobily, MTC Zain |
| Bolivia | Nuevatel | Israel | Pelephone | Serbia | Telenor |
| Brazil | Brasil Telecom | Italy | Vodafone, 3 | Seychelles | Cable & Wireless |
| British Virgin Islands | Tigo | Japan | DoCoMo | Singapore | M1, StarHub, Singapore Telecom |
| Brunei Darussalam | Bmobile | Jersey | Jersey Telecom | Slovenia | Tusmobil |
| Bulgaria | MobilTel | Jordan | Orange | South Africa | Vodacom |
| Cambodia | Cadcomms | Kazakhstan | Beeline Kar-Tel | South Korea* | SK Telecom |
| Canada (**) | Rogers Wireless, Fido, Bell Mobility, Telus | Kenya | Airtel | Spain | Vodafone, Telefonica, Xfera (Yoigo) |
| Chile | Claro | Kuwait | Zain, VIVA | Sri Lanka | Etisalat |
| China | China Unicom | Latvia | Latvian Mobile | Sudan | Zain |
| Colombia | Telefonica | Lithuania | Omnitel | Sweden | 3, TeliaSonera |
| Croatia | Tele2 | Luxembourg | P&T Lux | Switzerland | Swisscom |
| Cyprus | Vodafone (CYTA) | Macau | SmarTone Mobile | Taiwan | Far EasTone, Taiwan Mobile |
| Czech Republic | Vodafone, O2 | Madagascar | Telma | Tanzania | Airtel, Zanzibar Telecom |
| Denmark | 3, Telia Danmark | Malaysia | Celcom, Digi Telecom, Maxis Mobile | Thailand | True Move |
| Dominican Republic | Claro | Maldives | Wataniya | Trinidad & Tobago | Digicel |
| Egypt | Vodafone | Malta | Vodafone | Tunisia | Orange |
| El Salvador | Tigo | Mauritius | Cellplus | Turkey | Vodafone |
| Estonia | AS EMT | Mexico | Movistar, Iusacell | Uganda | Orange |
| F.Y.R. Macedonia | VIP | Moldova | Orange | Ukraine | JSC Ukrtelecom |
| Faroe Islands | Faroese Telecom | Monaco | Orange | United Arab Emirates | Etisalat |
| Finland | TeliaSonera, Alands | Mongolia | Mobicom | United Kingdom | O2, Vodafone, Orange, T-mobile |
| France | Orange | Montenegro | M Tel | United States (**) | T-Mobile |
| Georgia | Geocell | Montserrat | Uzbekistan | Unitel | |
| Germany | Vodafone, Telefonica (O2) | Netherlands | Vodafone | Venezuela | Telcel |
| Ghana | Airtel | New Zealand | Vodafone | Vietnam | MobiFone |
| Gibraltar | Gibtel | Nigeria | MTN, Glo Mobile | ||
| Greece | Wind Hellas, Cosmote | Norway | NETCOM |
* Enter 2 followed by the PIN in South Korea and Uzbekistan