| Country | Tel company |
| Afghanistan | |
| AWCC | |
| TDCA (ROSHAN) | |
| Albania | |
| AMC | |
| Vodafone | |
| Algeria | |
| Algérie Telecom (AMN) | |
| Orascom (Djezzy) | |
| Wataniya | |
| Andorra | |
| Mobiland (STA) | |
| Angola | |
| Unitel | |
| Antigua & Barbuda | |
| APUA | |
| Argentina | |
| CTI Movil | |
| Telecom Personal S.A. | |
| Unifon (Movistar) | |
| Armenia | |
| Armentel | |
| K Telecom CJSC (VivaCell) | |
| Aruba | |
| Digicel (NMTS,Mossel) | |
| SETAR GSM | |
| Australia | |
| Hutchinson 3G | |
| Satellite Network | |
| Telstra (MobileNet,OneTel) | |
| Virgin Mobile | |
| Vodafone | |
| YES Optus (Singtel) | |
| Austria | |
| Connect (ONE) | |
| Mobilkom (Telekom,A1,PTA) | |
| T-Mobile Austria GmbH (Tele.Ring) | |
| TRE (H3G) | |
| Azerbaijan | |
| Azercell Telekom B.M. | |
| J.V.Bakcell GSM 2000 | |
| Bahrain | |
| Batelco (BHR Mobile Plus) | |
| Vodafone (MTC) | |
| Bangladesh | |
| AkTel (Telecom Malaysia) | |
| BanglaLink - Sheba | |
| GrameenPhone | |
| Barbados | |
| Cable and Wireless BET Ltd. | |
| Cingular | |
| Digicel | |
| Belarus | |
| Mobile Digital Comm(VELCOM) | |
| MTS Belarus | |
| Belgium | |
| BASE (KPN Orange) | |
| Mobistar | |
| Proximus (Belgacom) | |
| Belize | |
| Belize Telecommunication Ltd | |
| Benin | |
| Libercom | |
| Spacetel (Areeba) | |
| Telecel Benin | |
| Bermuda | |
| Cingular (AT&T, Telekom) | |
| Mobility | |
| Bhutan | |
| B-Mobile | |
| Bolivia | |
| Nuevatel | |
| Bosnia-Herzegovina | |
| BH Telecom (PTT BIH) | |
| ERONET/HPT | |
| Mobilna Srpske (MOBIS,RSTelecom) | |
| Botswana | |
| Mascom Wireless | |
| Orange (Vista) | |
| Brazil | |
| Nextel | |
| TIM | |
| TNL PCS (Oi,Telemar) | |
| British Virgin Islands | |
| CCT | |
| Brunei | |
| DataStream Technology (DTSCom) | |
| Bulgaria | |
| Cosmo Bulgaria Mobile (Globul) | |
| MobilTel AD | |
| VivaTel | |
| Burkina Faso | |
| CELTEL | |
| TELMOB (Onatel) | |
| Burundi | |
| Telecel | |
| Cambodia | |
| CamGSM (MobiTel,Tango)) | |
| Camshin (Shinawatra) DCS 1800 | |
| Casacom (Samart) GSM 900 | |
| Casacom (Samart) NMT 900 | |
| Cameroon | |
| MTN | |
| Orange (SCM) | |
| Canada | |
| Microcell Solutions Inc. (Fido) | |
| Rogers AT&T Wireless | |
| Cape Verde | |
| CV Movel | |
| Cayman Islands | |
| Cable & Wireless | |
| Chad | |
| Celtel Tchad SA | |
| Chile | |
| Entel Movil | |
| Entel PCS | |
| Telef?nica M?vil | |
| China | |
| China Mobile/Telecom | |
| China Unicom | |
| Unallocated Prefixes | |
| Colombia | |
| Movil SA (OLA) | |
| Congo | |
| CelTel | |
| Libertis | |
| Congo, Democratic Republic | |
| Celtel | |
| Sait Telecom SPRL(Oasis) | |
| Supercell | |
| Vodacom (CWN) | |
| Croatia | |
| T-Mobile (HT Mobile,Cronet,Croatian Tele.) | |
| Tele2 | |
| VipNet | |
| Cuba | |
| C-COM (Etecsa) | |
| Cyprus | |
| Areeba | |
| CYTA (Vodafone) | |
| Czech Republic | |
| T-Mobile (Radiomobil) | |
| Telefonica O2 (EuroTel) | |
| Unallocated Prefixes | |
| Vodafone Czech Republic a.s. (OSKAR) | |
| Denmark | |
| Orange (Mobilix) | |
| Sonofon (Dansk Mobil Telefon) | |
| TDC (Tele Denmark) | |
| Telia (Orange) | |
| Tellmore (Virtual:Tele Danmark) | |
| Three (Hi3G) | |
| Djibouti | |
| Evatis (Djibouti Telekom) | |
| Dominican Republic | |
| Orange (France Telecom Do.) | |
| Ecuador | |
| Porta (Conecel) | |
| Egypt | |
| ECMS MobiNil | |
| Vodafone (Misrfone +CLICK GSM) | |
| El Salvador | |
| CTE Telecom PERSONAL | |
| Digicel | |
| Equatorial Guinea | |
| GETESA | |
| Estonia | |
| EMT | |
| Radiolinja | |
| Tele2 (Eesti) | |
| Faroe Islands | |
| FaroeseTelecom | |
| Kall Telecom | |
| Fiji | |
| Vodafone | |
| Finland | |
| Alands Mobiltelefon Ab | |
| Dna Finland Oy | |
| Elisa (Oy Radiolinja Ab) | |
| Finnet (Finnish 2G Suomen) | |
| Saunalahti Group Oyj (Jippii) | |
| Telia Mobile | |
| TeliaSonera | |
| France | |
| Bouygues Telecom | |
| Infomobile | |
| Nilcom Prosedie | |
| Orange | |
| SFR | |
| Te.Sa.M | |
| French Guiana | |
| Bouygues Telecom | |
| French Polynesia | |
| Tikiphone | |
| French West Indies | |
| Bouygues | |
| Orange | |
| Gabon | |
| Celtel | |
| Libertis | |
| Gambia | |
| Africell | |
| Georgia | |
| Geocell | |
| Magticom Ltd. | |
| Germany | |
| E-Plus | |
| Group 3G | |
| MobilCom | |
| O2 (Viag, E2) | |
| Scall (T-Mobil) | |
| T-Mobil (D1,Detemobil) | |
| Vodafone (D2,Man.man,Mobilfunk) | |
| Ghana | |
| Ghana Telecom (One-touch) | |
| Scancom (Areeba) | |
| Gibraltar | |
| Gibtel | |
| Global Mobile Satellite | |
| Globalstar | |
| Greece | |
| Cosmote | |
| Infoquest AEBE (Q-Telecom) | |
| TIM (Telestet,Stet Hellas) | |
| Vodafone (Panafon) | |
| Greenland | |
| TELE Greenland | |
| Grenada | |
| Cable & Wireless | |
| Guadeloupe | |
| Bouygues Telecom | |
| Orange (France Caraibe Mobiles) | |
| Guernsey | |
| Cable & Wireless | |
| Guyana | |
| CelStar | |
| HongKong | |
| HK CSL (900/1800) | |
| Hutchison (CDMA) | |
| Hutchison (Orange 2G) | |
| Hutchison 3G | |
| New World PCS | |
| Peoples | |
| SmarTone | |
| Sunday (Mandarin) | |
| Hungary | |
| Pannon GSM | |
| T-Mobile (Westel) | |
| Vodafone (V.R.A.M Tele.) | |
| Iceland | |
| Landssimi (Siminn) | |
| Og Vodafone (Islandssimi) | |
| TAL | |
| Viking Wireless(IMC) | |
| India | |
| ADIL - Haryana | |
| ADIL - Rajasthan | |
| ADIL - UP(E) | |
| Aircel - Tamil Nadu | |
| Airtel - Karnataka (Bharti) | |
| Airtel - Orissa | |
| Airtel Bharti Cellular - Kerala | |
| Barakhamba - AP | |
| Barakhamba - Chennai | |
| Barakhamba - Karnataka | |
| Bharti - AP (Airtel) | |
| Bharti - Punjab | |
| Bharti Cellular - Delhi | |
| Bharti Cellular - Gujarat | |
| Bharti Cellular - Haryana | |
| Bharti Cellular - Maharashtra | |
| Bharti Cellular - MP | |
| Bharti Cellular - Mumbai | |
| Bharti Cellular - Tamilnadu | |
| Bharti Cellular - UP(W) | |
| Bharti Mobinet (Skycell)-Chennai | |
| Bharti Mobitel - Kolkata | |
| Bharti Telenet - HP | |
| BPL Mobile Cellular (Kerala) | |
| BPL Mobile Cellular (Maharashtra) | |
| BPL Mobile Comm (Mumbai) | |
| BSNL - Andhra Pradesh | |
| BSNL - Assam | |
| BSNL - Bihar | |
| BSNL - Chennai | |
| BSNL - Gujarat | |
| BSNL - Haryana | |
| BSNL - Himachal Pradesh | |
| BSNL - J&K | |
| BSNL - Karnataka | |
| BSNL - Kerala | |
| BSNL - Kolkata | |
| BSNL - Maharashtra | |
| BSNL - Mathya Pradesh | |
| BSNL - NE | |
| BSNL - Orissa | |
| BSNL - Punjab | |
| BSNL - Rajastan | |
| BSNL - Tamilandu | |
| BSNL - UP(E) | |
| BSNL - UP(W) | |
| BSNL - West Bengal | |
| BTA Cellcom - MP | |
| C-DOT - Delhi | |
| C-DOT - Kolkata | |
| Escorts Telecom - HP | |
| Escorts Telecom - Rajasthan | |
| Escorts Telecom - UP(E) | |
| Fascel - Gujarat (Hutchenson) | |
| Fascel Limited | |
| Hexacom (Oasis)-NE | |
| Hexacom (Oasis)-Rajasthan | |
| Hutchinson East (Usha Martin-Kolkata) | |
| Hutchinson – Karnataka | |
| Hutchison Essar (Sterling-Delhi) | |
| Hutchison Essar Telecom | |
| Hutchison Max (Orange)-Mumbai | |
| Hutchison Max Telecom (Orange) | |
| Idea Cellular | |
| IDEA Cellular (Gujurat) | |
| IDEA Cellular (Maharastra) | |
| IDEA Cellular (New Delhi) | |
| IDEA Mobile Comm - Haryana | |
| IDEA Mobile Comm - Kerala | |
| IDEA Mobile Comm - Upwest | |
| Koshika - Bihar | |
| Koshika - Orissa | |
| Koshika - UP(E) | |
| Koshika - UP(W) | |
| MTNL - Delhi | |
| MTNL - Mumbai | |
| Reliance Internet Serv - Kolkata (CDMA) | |
| Reliance Telecom - Assam (CDMA) | |
| Reliance Telecom - Bihar (CDMA) | |
| Reliance Telecom - HP (CDMA) | |
| Reliance Telecom - Maharastra (CDMA) | |
| Reliance Telecom - MP (CDMA) | |
| Reliance Telecom - NE (CDMA) | |
| Reliance Telecom - Orissa (CDMA) | |
| Reliance Telecom - Punjab (CDMA) | |
| Reliance Telecom - WB (CDMA) | |
| RPG Cellular - Chennai | |
| Spice Commns - Karnataka | |
| Spice Commns - Punjab | |
| Tata Cellular - AP | |
| Unallocated Prefixes | |
| Indonesia | |
| Excelcomindo Pratama | |
| PT Indosat (Satelindo) | |
| PT Natrindo TS (Lippo Telecom) | |
| Telkom Flexi (CDMA, Telkomsel) | |
| Iran | |
| MTCE (ITC) | |
| Iraq | |
| AsiaCell | |
| Atheer | |
| Osracom | |
| Ireland | |
| Eircell (Vodafone) | |
| Hutchinson 3G | |
| Meteor | |
| O2 (Esat Digifone) | |
| Isle of Man | |
| O2 (Manx,Pronto) | |
| Italy | |
| TIM | |
| TRE (H3G) | |
| Vodafone (Omnitel) | |
| WIND (BLU) | |
| Ivory Coast | |
| Comstar Cellular S.A. | |
| Loteny (TELECEL, MTN) | |
| Orange (SIM,Ivoiris) | |
| Jamaica | |
| Mossel (Digicel) | |
| Japan | |
| NTT/DoCoMo | |
| Vodafone K.K. (J-Phone) | |
| Jersey | |
| Jersey Telecoms | |
| Jordan | |
| Jordan Mobile Telephone (Fastlink) | |
| MobileCom (Petra) | |
| Umniah | |
| XPress | |
| Kazakhstan | |
| KarTel (K-Mobile) | |
| KCell | |
| Kenya | |
| Celtel (KenCell) | |
| Safaricom | |
| Korea (South) | |
| KT Freetel | |
| SK Telecom (+Shinsegi) | |
| Unallocated Prefixes | |
| Kuwait | |
| Vodafone (MTC) | |
| Wataniya Telecom | |
| Kyrgyzstan | |
| Bitel | |
| Lao | |
| Milicom (Tango) | |
| Latvia | |
| Latvian Mobile Telephone (LMT) | |
| Tele2 (Baltkom) | |
| Lebanon | |
| ALFA (Cellis) | |
| MTC Touch (LibanCell) | |
| Lesotho | |
| Econet | |
| Vodacom Lesotho (Pty) Ltd | |
| Liberia | |
| Cellcom | |
| Libya | |
| El Madar | |
| Liechtenstein | |
| Mobilkom LIE AG | |
| Orange (VIAG EuroPlatform) | |
| Swisscom (Telecom FL,Comfone) | |
| Tele2 AG (Tango) | |
| Lithuania | |
| Bite GSM (UAB) | |
| Omnitel GSM | |
| Tele2 | |
| Luxembourg | |
| Millicom SA | |
| P&T LuxGSM (EPT) | |
| Tango (Millicom) | |
| VOX | |
| Macau | |
| CTM (Telemovel) | |
| Hutchison MAC | |
| SmarTone | |
| Macedonia | |
| Cosmofon | |
| T-Mobile (Mobimak) | |
| Madagascar | |
| Madacom | |
| Orange (Antaris,SMM) | |
| Malawi | |
| CELTEL | |
| Telekom Networks (Callpoint) | |
| Malaysia | |
| Celcom (TMTouch) | |
| Digi | |
| Maxis (Binariang, Timecel) | |
| Maldives | |
| Dhiraagu | |
| Wataniya Telecom (WMobile) | |
| Mali | |
| Ikatel | |
| Malitel-SA | |
| Malta | |
| Go Mobile | |
| Vodafone Malta Ltd | |
| Martinique | |
| Bouygues Telecom | |
| Orange (France Caraibe Mobiles) | |
| Mauritania | |
| Mattel | |
| Mauritel Mobiles | |
| Mauritius | |
| Cellplus | |
| Emtel | |
| Mexico | |
| Telcel (RadioMovil Dipsa GSM) | |
| Moldova | |
| MoldCell | |
| VoxTel | |
| Monaco (Kosovo) | |
| Monaco Telecom | |
| Mongolia | |
| MobiCom | |
| Morocco | |
| Maroc Telecom (IAM,Itisallat al Majghrib) | |
| Medi Telecom | |
| Mozambique | |
| mCel (Moz Cellulcar,TDM) | |
| Vodacom | |
| Namibia | |
| MTC | |
| Nepal | |
| Doorsanchar (Nepal Telecom,NTC) | |
| Netherlands | |
| KPN Mobile The Netherlands B.V. | |
| Orange Nederland N.V. | |
| T-Mobile Netherlands B.V. | |
| Telfort (O2) | |
| Vodafone (Libertel) | |
| Netherlands Antilles | |
| TelCell (St Maarten) | |
| UTS Wireless Curacao | |
| New Caledonia | |
| OPT (Mobilis) | |
| New Zealand | |
| Telecom New Zealand | |
| Telstra New Zealand | |
| Vodafone (BellSouth) | |
| Niger | |
| Celtel | |
| Nigeria | |
| Celtel (Vmobile Nigeria) | |
| Globacom Ltd. (Glo Mobile) | |
| MTN | |
| Norway | |
| Chess Communications AS | |
| NetCom | |
| Sense Communications | |
| Tele2 Norge AS | |
| Telenor Mobil AS | |
| Oman | |
| Omantel | |
| Qatari (NAWRAS) | |
| Pakistan | |
| Mobilink | |
| Telenor | |
| UFone (PAKTEL) | |
| Warid Telecom | |
| Panama | |
| Cable & Wireless | |
| Paraguay | |
| Hola Paraguay | |
| Hutchinson Telecom | |
| Peru | |
| América M?vil Per? S.A.C (Claro,TIM) | |
| Philippines | |
| Digital (Sun Cellular) | |
| Globe Telecom | |
| Smart Communications | |
| Poland | |
| Era (Heyah,Polska Telefonia Cyfrowa) | |
| Orange (Idea, PTK Centertel) | |
| PlusGSM (PolKomTel, SamiSwoi) | |
| Portugal | |
| Main Road Tele. (Optimus) | |
| TMN | |
| Vodafone (Telecel) | |
| Puerto Rico | |
| AT&T Wireless | |
| Qatar | |
| Qatar Telecom (Q-Tel) | |
| Reunion | |
| Orange (France Telecom) | |
| Societe Reun Dradiotel | |
| Romania | |
| Cosmote (Cosmorom) | |
| Orange (Dialog, Mobil Rom) | |
| Vodafone Romania S.A. (MobiFon, Connex) | |
| Russia | |
| BaykalWestCom | |
| Dontelecom | |
| Ermak RMS | |
| Far East Cellular Systems | |
| KB Impuls (Beeline) | |
| Kuban | |
| MegaFon (North-West,JSC,Sonic Duo) | |
| Mobile Communications Systems | |
| Mobile TeleSystems | |
| New telephone company | |
| Prim Telephon | |
| Siberia Cellular Systems | |
| SMARTS (Zao) | |
| SMARTS IVANOVO | |
| Tele2 | |
| TELECOM-XX1 | |
| Telesot Alania | |
| Uraltel Ltd | |
| Vimpelcom | |
| Rwanda | |
| Rwandacell (MTN) | |
| Saudi Arabia | |
| Mobily | |
| Saudi Telecom (STC, Al Jawal) | |
| Senegal | |
| SenTel | |
| SonaTel (Alize) | |
| Serbia & Montenegro | |
| MONET | |
| Promonte | |
| Telekom Srbija (MTS) | |
| Telenor Belgrade (MOBTEL) | |
| Seychelles | |
| Cable and Wireless | |
| Telecom Seychelles (Airtel) | |
| Sierra Leone | |
| Celtel S.L. Ltd. | |
| Comium | |
| Millicom S.L. Ltd. | |
| Mobitel | |
| Singapore | |
| M1 | |
| Mobile CDMA | |
| Singtel (1800) | |
| SingTel (900) | |
| Singtel - Paging | |
| StarHub Pte Ltd. | |
| Slovakia | |
| Orange (Globtel) | |
| T-Mobile (Eurotel) | |
| Slovenia | |
| Mobitel GSM | |
| SiMobil (Vodafone) | |
| Vega (Western Wireless) | |
| Somalia | |
| Golis | |
| Hormood | |
| Nationlink | |
| Telesom | |
| South Africa | |
| Cell C | |
| MTN | |
| Vodacom | |
| Spain | |
| France Telecom Espa?a (Amena) | |
| Telefonica (Movistar) | |
| Vodafone (Airtel Movil) | |
| Xfera Moviles- S.A. | |
| Sri Lanka | |
| Celltel | |
| Mobitel | |
| MTN Networks (Pvt) Ltd | |
| St Vincent | |
| Digicel (C&W) | |
| St. Lucia | |
| AT&T | |
| Digicel (C&W) | |
| Sudan | |
| MTN | |
| SDN (MobiTel) | |
| Swaziland | |
| Swazi MTN | |
| Sweden | |
| Hi3G Access AB | |
| Spring Mobile | |
| Tele2 (Comviq) | |
| Telenor (Vodafone) | |
| Telia (Sonera,Mobitel) | |
| Switzerland | |
| Orange | |
| Sunrise (TDC,diax) | |
| Swisscom (Migros) | |
| Syria | |
| Spacetel | |
| SyriaTel | |
| Taiwan | |
| Chunghwa-LDM- (GSM) | |
| CT2 Service | |
| FarEasTone | |
| FarEasTone (DCS) | |
| FarEasTone Mobitai TransAsia | |
| KGT (DCS) | |
| Mobitai (GSM) | |
| Taiwan Mobile Co (TCC) | |
| TransAsia | |
| Tajikistan | |
| Indigo | |
| Tanzania | |
| Celltel | |
| MIC (Mobitel) | |
| Vodacom (T) Ltd. | |
| Zantel Ltd. | |
| Thailand | |
| AIS (Advanced Info Service) | |
| Digital Phone Co | |
| TAC (DTAC) | |
| True Move (Orange) | |
| Togo | |
| Togocel | |
| Trinidad and Tobago | |
| Digicel | |
| Telcom Services (TSTT) | |
| Tunisia | |
| Tunisiana (Osracom) | |
| Tunisie Telecom (Tunicell,Tuntel) | |
| Turkey | |
| Avea | |
| Aycell | |
| IS-TIM (Aria) | |
| Turkcell | |
| Vodafone (Telsim) | |
| Turkmenistan | |
| BCTI | |
| Uganda | |
| CelTel (Clovergem) | |
| MTN | |
| Uganda Telecom (UTL Telecel) | |
| UK | |
| BT (PSTN) | |
| Hutchison 3G UK Ltd | |
| O2 (BT Cellnet) | |
| Orange | |
| T-Mobile (One-2-One,Virgin,C&W) | |
| Vodafone | |
| Ukraine | |
| Astelit | |
| Golden Telecom Bancomsvyaz | |
| Kyivstar GSM | |
| Ukrainian Radio Systems | |
| UMC | |
| United Arab Emirates | |
| DU (EITC) | |
| Unallocated Prefixes | |
| Uruguay | |
| Antel | |
| USA | |
| Alltel (text only) | |
| AT&T (text only) | |
| Cellular One (text only) | |
| Cingular (text only) | |
| Cingular-Bellsouth (text only) | |
| Cingular-Pacific Bell (text only) | |
| Nextel (text only) | |
| Sprint (text only) | |
| T-Mobile (text only) | |
| T-Mobile: PCS One (text only) | |
| T-Mobile: Powertel (text only) | |
| Unallocated Prefixes (text only) | |
| US Cellular (text only) | |
| Verizon (text only) | |
| Uzbekistan | |
| Coscom | |
| DAEWOO (Unitel) | |
| JV Uzdunrobita | |
| Vanuatu | |
| Telecom Vanuatu (SMILE) | |
| Venezuela | |
| DigiCel | |
| Digitel | |
| Infonet | |
| Vietnam | |
| Mobifone (VMS) | |
| Viettel | |
| Vinaphone (VTS) | |
| Yemen | |
| MPC (Sabafon) | |
| Spacetel | |
| Zambia | |
| CelTel | |
| MTN (Telecel) | |
| Zanzibar | |
| Zantelir | |
| Zimbabwe | |
| Econet | |
| NetOne | |
| Telecel (P+T Corp.) | |