| Afghanistan | Telecom Development Afghanistan Company (Roshan) |
| Albania | Vodafone |
| Anguilla | Cable & Wireless (West Indies) Ltd. Anguilla |
| Antigua and Barbuda | Cable & Wireless Caribbean Cellular (Antigua) Limited |
| Argentina | AMX Argentina S.A. (CLARO),Telecom Personal SA,Telefonica Moviles Argentina S.A |
| Armenia | Cyprus Telecommunications Authority (CYTA),MTN Cyprus Limited,Scancom (Cyprus) Ltd |
| Aruba | SETAR (Servicio di Telecomunicacion di Aruba) |
| Australia | Vodafone Network Pty LTD |
| Austria | A1 Telekom Austria AG (formerly Mobilkom Austria AG),Hutchison 3G Austria GmbH,Orange Austria Telecommunication GmbH,T-Mobile Austria GmbH,T-Mobile Austria GmbH (former TeleRing) |
| Azerbaijan | BakCell GSM 2000 (Azerbaijan) |
| Bahrain | Batelcom,Zain Bahrain B.S.C |
| Bangladesh | AKTEL Ltd,GrameenPhone Ltd,Orascom Telecom Bangladesh Limited |
| Barbados | Cable & Wireless Barbados Ltd. |
| Belarus | FE VELCOM |
| Belgium | Belgacom Mobile SA/NV,KPN Group Belgium NV/SA,Mobistar S.A. |
| Benin | Etisalat,Spacetel-Benin |
| Bermuda | Bermuda Digital Communications |
| Bosnia & Herzegov. | BH Telecom Joint Stock Company Sarajevo |
| Botswana | Mascom Wireless (Pty) Limited |
| Brazil | Claro |
| British Virgin Islands | Caribbean Cellular Telephone Ltd.(CCT) |
| Brunei Darussalam | B-Mobile Communications Sdn Bhd,DataStream Technology |
| Bulgaria | Bulgarian Telecommunications Company - Vivacom,MobilTel EAD |
| Cambodia | CamGSM,Telekom Malaysia International (Cambodia) Co. Ltd |
| Canada | Bell Mobility,Globalive Wireless LP,Telus,Videotron |
| Cayman Islands | Cable & Wireless (Cayman Islands) Limited |
| Chad | CelTel (Zain) Tchad SA,Millicom Tchad S.A. |
| Chile | Claro Chile SA,Entel Telefonia Movil,Telef |
| China | China Mobile,China Unicom |
| Colombia | Telefonica Moviles Colombia (Movistar) |
| Congo, Democratic Republic of the | Vodacom |
| Congo, Republic | CelTel Congo SA |
| Costa Rica | Claro,I.C.E. (Instituto Costarricense de Electricidad),Telefonica |
| Cote d'Ivoire | Atlantique Telecom - MOOV |
| Croatia | VIPnet d.o.o. |
| Curacao | Digicel |
| Cyprus | Cyprus Telecommunications Authority (CYTA) |
| Czechia | T-Mobile Czech Republic a.s.,Vodafone Czech Republic a.s. |
| Denmark | Hi3G Denmark ApS,TDC AS,Telenor A/S |
| Dominica | Cable & Wireless Dominica Ltd. |
| Dominican Republic | Compa |
| Ecuador | Conecel S.A. (Consorcio Ecuatoriano de Telecomunicaciones S.A.),Otecel S.A. -Telef |
| Egypt | Vodafone Egypt Telecommunications SAE |
| El Salvador | CTE Telecom Personal SA de CV,DIGICEL S.A. de C.V. |
| Estonia | Elisa Eesti AS |
| Eswatini | Swazi MTN Limited |
| Faroe Islands | Faroese Telecom |
| Fiji | Digicel (Fiji) Limited,Vodafone Fiji |
| Finland | Alands Mobiltelfon Ab,DNA Ltd,Elisa Corporation,TeliaSonera Finland Oyj |
| France | SFR France,Free Mobile |
| French Guiana | Digicel Antilles Francaises Guyane,Outremer Telecom |
| French Polynesia | Tikiphone SA |
| Gabon | Atlantique Telecom Gabon S.A. |
| Georgia | Magticom Ltd |
| Germany | E-Plus Mobilfunk GmbH & Co. KG,Telef |
| Ghana | Vodafone Ghana |
| Gibraltar | GibTelecom |
| Greece | COSMOTE,Vodafone |
| Grenada | Cable & Wireless Grenada ltd. |
| Guadeloupe | Dauphin Telecom |
| Guatemala | Claro.COMCEL-Communicaciones Celulares Sociedad Anonima,Telefonica M |
| Guinea | Areeba |
| Guinea-Bissau | Spacetel Guinee-Bissau SA |
| Guyana | Digicel Guyana,Guyana Telephone & Telegraph Co. |
| Honduras | Honduras - SERCOM/Claro,Honduras SERCOM Claro |
| Hong Kong | Hutchison Telecommunication HK Ltd.,New World PCS Limited (CSL Limited),SmarTone Mobile Communications Ltd (Vodafone) |
| Hungary | Pannon,T-Mobile Hungary Co. Ltd,Vodafone Hungary Ltd |
| Iceland | NOVA |
| India | Aircel Cellular Ltd,Bharti Airtel Limited,Bharti Andhra Pradesh,Bharti Chennai,Bharti Delhi,Bharti Gujarat,Bharti Haryana,Bharti Himachal Pradesh,Bharti Karnataka,Bharti Kerala,Bharti Kolkata,Bharti Madhya Pardesh,Bharti Maharashtra & Goa,Bharti Mumbai,Bh |
| Indonesia | Hutchison CP Telecommunications |
| Iraq | Zain IQ |
| Ireland | METEOR,O2 Ireland,Vodafone Ireland Ltd |
| Isle of Man | Manx Telecom |
| Israel | Pelephone |
| Italy | H3G SpA,Vodafone Omnitel N.V.,Wind Telecomunicazioni SpA |
| Ivory Coast | MTN |
| Jamaica | Cable & Wireless Jamaica Limited,Digicel (Jamaica) Limited |
| Japan | NTT Docomo |
| Jordan | Petra Jordanian Mobile Telecommunications Company(MobileCom),Umniah Mobile Company,Zain |
| Kazakhstan | Beeline (K-MObile),Mobile Telecom Service LLP |
| Kenya | Safaricom Limited |
| Korea S, Republic of | KT Corporation,SK Telecom |
| Korea, Republic of | SK Telecom |
| Kosovo | Mobitel (Kosovo region) |
| Kuwait | Viva (KTC),Wataniya Telecom,Zain (MTC) |
| Kyrgyzstan | Sky Mobile LLC |
| Latvia | Latvijas Mobilais Telefons (Latvian Mobile Telephone, LMT) Peak,SIA Bite Latvija,TELE2 |
| Lesotho | Vodacom |
| Liberia | Lonestar Communications Corporation |
| Liechtenstein | mobilkom (liechtenstein) AG |
| Lithuania | Omnitel Lithuania |
| Luxembourg | P&T Luxembourg,Tango SA |
| Macao | CTM |
| Madagascar | Celtel |
| Malawi | CelTel Limited |
| Malaysia | Maxis Communications Bhd (Maxis) |
| Malta | Vodafone Malta Ltd |
| Mexico | Lusacell |
| Moldova | Orange Moldova S.A. |
| Monaco | Monaco Telecom |
| Mongolia | Unitel LLC Mongolia |
| Montenegro | Telenor |
| Montserrat | Cable & Wireless West Indies Ltd |
| Morocco | Medi Telecom |
| Mozambique | Vodacom |
| Myanmar | Telenor |
| Netherlands | KPN B.V.,Telfort B.V Netherlands,Vodafone Libertel B.V. |
| New Zealand | Vodafone New Zealand Ltd |
| Nicaragua | Empresa Nicaraguense de Telecomunicaciones S.A. - ENITEL,Telefonia Celular de Nicaragua S.A. |
| Niger | Celtel Niger |
| Nigeria | Celtel Nigeria Ltd,MTN Nigeria Communications Limited |
| North Macedonia | Macedonia VIP Operator |
| Norway | Telenor Mobil,Telia Sonera Norge AS (formerly NETCOM AS) |
| Oman | Oman Mobile |
| Pakistan | MOBILINK, Pakistan Mobile Communication Ltd.,Telenor Pakistan (Pvt) Ltd.,Warid Telecom (PVT) Ltd |
| Palestinian Territory | Palestine Telecomm Co Ltd |
| Panama | Cable & Wireless Panama,Claro Panama S.A.,Digicel Panama,Telefonica Moviles Panama |
| Papua New Guinea | Digicel (PNG) Limited |
| Paraguay | AMX Paraguay S.A. (Claro),Telefonica Celular Del Paraguay S.A. (Telecel S.A.) |
| Peru | America Movil Peru (Claro),Nextel International Inc. Peru |
| Philippines | Globe Telecom,SMART Communications, Inc. |
| Poland | ERA Poland,Polkomtel SA |
| Portugal | Vodafone |
| Puerto Rico | Puerto Rico Telephone Company h/n/c Claro |
| Qatar | Vodafone Qatar Q.S.C. |
| Reunion | Societe Reunionnaise de Radiotelephone,Outremer Telecom |
| Romania | Vodafone S.A. |
| Russian Federation | OJSC VimpelCom,Tele2 |
| Saint Kitts and Nevis | Cable & Wireless St Kitts & Nevis Limited |
| Saint Lucia | Cable & Wireless Caribbean Cellular (St Lucia) Limited |
| Saint Vincent and the Grenadines | Cable & Wireless Caribbean Cellular (St. Vincent & the Grenadines) Ltd |
| Samoa | Digicel |
| Saudi Arabia | AL JAWAL- Saudi Telecom Company (STC),Zain |
| Serbia | VIP Mobile |
| Seychelles | Telecom (Seychelles) Ltd |
| Singapore | SingTel Mobile,StarHub Mobile Pte Ltd |
| Slovakia | Telefonica O2 |
| Slovenia | SI.Mobil |
| South Africa | Vodacom |
| South Sudan | ZAIN |
| Spain | Vodafone Spain (Spain),Xfera Moviles S.A. (Yoigo),Telefonica Moviles,Telefonica Moviles Espana S.A. |
| Sri Lanka | Dialog Telekom Ltd |
| Suriname | Digicel Suriname N.V. |
| Sweden | Hi3G Access AB,Telenor Sverige AB,TeliaSonera Mobile Networks AB |
| Switzerland | Orange Communications SA,Swisscom (Switzerland) Ltd |
| Taiwan | Chunghwa Telecom MobileFar EasTone Telecommunications Co Ltd,Taiwan Mobile Co.Ltd |
| Tajikistan | Bee Line |
| Tanzania, United Republic of | Vodacom Tanzania |
| Thailand | Total Access Communication PLC. (DTAC),Advanced Wieless Network (THAWN) |
| Togo | Telecel/MOOV |
| Tonga | Digicel (Tonga) Limited |
| Trinidad and Tobago | Digicel (Trinidad) Limited |
| Tunisia | Tunisie Telecom |
| Turkey | Turkcell lletisim Hizmetleri A.S.,Vodafone Telekomunikasyon A.S. |
| Turks and Caicos Islands | Cable & Wireless West Indies Ltd (Turks & Caicos) |
| Uganda | MTN Uganda Ltd |
| Ukraine | MTS (UMC) |
| United Arab Emirates | Emirates Telecom ETISALAT |
| United Kingdom | Hutchison, Vodafone |
| United States of America | AT&T Wireless (USA) - Includes Puerto Rico |
| Uruguay | ANTEL |
| Uzbekistan | FE Uzdunrobita Ltd |
| Vanuatu | Digicel (Vanuatu) Ltd |
| Venezuela | Telcel C.A. |
| Yemen | Spacetel |
| Zambia | Celtel Zambia Limited,MTN |
| Zimbabwe | Telecel Zimbabwe |
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