| Name | ITU-R | ITU-T | ITU-D | Categories |
| AFGHANISTAN |
| Afghan Wireless Communication Company, KABUL | | | X | ROA / OPERATOR |
| ALGERIA |
| Algérie Télécom SPA, ALGER | X | X | X | ROA / OPERATOR |
| Autorité de Régulation de la Poste et des Communications Electroniques (ARPCE), ALGER | X | X | X | OTHER ENTITY / REGULATOR |
| ICOSNET SPA, CHERAGA - ALGER | | | X | ROA |
| ARGENTINA |
| Empresa Argentina de Soluciones Satelitales (AR-SAT S.A.), BUENOS AIRES | ASSOCIATE SG4 | | X | ROA |
| ARMENIA |
| \Telecom Armenia\ Open Joint Stock Company, YEREVAN | | | X | ROA / OPERATOR |
| AUSTRALIA |
| Free TV Australia Ltd., NORTH SYDNEY | X | | | SIO |
| NBN Corporation Limited, Doclands | | X | | ROA |
| SingTel Optus Pty Limited, NORTH RYDE | X | | | ROA |
| Telstra Limited, MELBOURNE | X | X | | ROA / OPERATOR |
| AUSTRIA |
| A1 Telekom Austria AG, WIEN | X | X | X | ROA / OPERATOR |
| BAHAMAS |
| Cable Bahamas Limited, NASSAU | | | X | ROA / SERVICE PROVIDER |
| BANGLADESH |
| Bangladesh Communication Satellite Company Limited (BCSCL), Dhaka | X | | | ROA |
| Grameenphone (GP) Limited, DHAKA | | | X | ROA |
| BELGIUM |
| Commscope Connectivity Belgium BV, KESSEL-LO | | X | | SIO |
| Cullen International, Brussels | | | X | SIO |
| Proximus PLC, EVERE HAACHT | X | X | | ROA |
| BOSNIA AND HERZEGOVINA |
| BH Telecom, SARAJEVO | | X | X | ROA / OPERATOR |
| BRAZIL |
| Claro S.A., São Paulo | X | | | ROA / OPERATOR |
| SBA Communications, São Paulo | | | X | SIO |
| BULGARIA |
| BULGARIA SAT, SOFIA | X | | | ROA / OPERATOR |
| BURUNDI |
| Econet Leo SA, BUJUMBURA | | | X | ROA / MOBILE OPERATOR |
| Office national des télécommunications du Burundi (ONATEL), BUJUMBURA | | | X | ROA / OPERATOR |
| CAMEROON |
| Cameroon Telecommunications (CAMTEL), YAOUNDE | | | X | ROA / OPERATOR |
| CANADA |
| Bell Canada, MONTREAL | | X | | ROA / OPERATOR |
| Bell Mobility, MISSISSAUGA | X | | | SIO |
| Ciena Canada, OTTAWA | | X | | SIO / MANUFACTURER |
| Ericsson Canada, Inc., ST. LAURENT | X | X | | SIO |
| Hydro-Québec, VARENNES | X | | | SIO |
| InterDigital Canada Ltee, Montreal | | X | | SIO / MANUFACTURER |
| Telesat, OTTAWA | X | | X | ROA / OPERATOR |
| TELUS Communications Inc., EDMONTON | | X | | ROA |
| Vecima Networks Inc., Victoria | | X | | SIO / MANUFACTURER |
| CHINA |
| Alibaba China Co. Ltd., HANGZHOU | | X | | SIO |
| Ant Group Co., Ltd., Hangzhou | | X | | SIO / SERVICE PROVIDER |
| Asia Satellite Telecommunications Co. Ltd. (AsiaSat), HONG KONG | X | | | ROA |
| Asiainfo Technologies (China), Inc., Beijing | | X | | OTHER ENTITY |
| Beijing Baidu Netcom Science Technology Co., Ltd., BEIJING | | X | | ROA |
| Beijing Qihu Keji Co., Ltd., BEIJING | | X | | SIO |
| CAS Quantum Network Co. Ltd., Beijing | | X | | ROA |
| China Broadcasting Network Corporation Ltd., BEIJING | X | | | ROA |
| China Great Wall Industry Corporation, BEIJING | X | | | SIO / MANUFACTURER |
| China Head Aerospace Technology Co., BEIJING | X | | | SIO |
| China Information Communication Technologies Group, WUHAN | X | X | | SIO |
| China International Telecommunication Construction Corporation, BEIJING | | | X | ROA / SERVICE PROVIDER |
| China Mobile Communications Co. Ltd., BEIJING | X | X | | ROA / MOBILE OPERATOR |
| China Satellite Communications Co. Ltd. 21 Floor, Building A,, Beijing | X | | | ROA |
| China Satellite Network Group Co., Ltd, Beijing | X | X | | ROA / OPERATOR |
| China Telecommunications Corporation, BEIJING | X | X | X | ROA |
| China Unicom, BEIJING | X | X | X | ROA |
| Guangdong OPPO Mobile Telecommunications Corp., Ltd., DongGuan City | X | X | | SIO |
| Hangzhou Hikvision Digital Technology Co.,Ltd., Hangzhou | | X | | SIO |
| Hengtong Optic-electric Co., Ltd., Suzhou | | X | | SIO |
| Huawei Technologies Co., Ltd., SHENZHEN | X | X | X | SIO |
| Information Science Academy of China Electronics Technology Group Corporation (ISA CETC), BEIJING | | X | | SIO / R&D INSTITUTION |
| Inspur Communications Technology Co., Ltd., Jinan | | X | | ROA |
| Jinan Institute of Quantum Technology | | X | | SIO |
| New H3C Technologies Co., Ltd., Beijing | | X | | SIO |
| Nokia Shanghai Bell Co. Ltd., SHANGHAI | X | X | | SIO |
| Nufront (Beijing) Technology Group Co. Ltd., BEIJING | X | | | OTHER ENTITY |
| QuantumCTek Co., Ltd., Beijing | | X | | SIO |
| Sharing Mobile Group Co.,Ltd, Beijing | | | X | ROA |
| State Grid Corporation of China, Beijing | | X | | OTHER ENTITY |
| SZ DJI Technology Co. Ltd., SHENZHEN | | X | | SIO |
| Telematics Industry Application Alliance, Daxing District, Beijing | | X | | SIO |
| Tencent Technology (Shenzhen) Company Limited, Shenzhen | | X | | ROA |
| Vivo Mobile Communication Co., Ltd., Dongguan | | X | | SIO / MANUFACTURER |
| Zhejiang Dahua Technology Co. Ltd., HANGZHOU | | X | | SIO |
| ZTE Corporation, SHENZHEN, GUANGDONG | X | X | X | SIO |
| COLOMBIA |
| Empresa de Telecomunicaciones de Bogotá S.A. ESP, BOGOTÁ D.C. | | | X | ROA |
| COSTA RICA |
| Instituto Costarricense de Electricidad (ICE), SAN JOSÉ | X | X | X | ROA / OPERATOR |
| CUBA |
| Empresa de Telecomunicaciones de Cuba (ETECSA), LA HABANA | X | X | X | ROA |
| CôTE D'IVOIRE |
| Groupe Défis & Stratégies, ABIDJAN | | | X | OTHER ENTITY |
| Moov Africa Côte d’Ivoire, ABIDJAN | | X | X | ROA |
| National Agency of the Universal Service of Telecommunications/ICT, Abidjan | | | X | OTHER ENTITY |
| DOMINICAN REP. |
| CLARO DOMINICANA (Compañía Dominicana de Teléfonos, S.A.), SANTO DOMINGO | | | X | ROA |
| EGYPT |
| Telecom Egypt, GIZA | | | X | ROA / OPERATOR |
| The Egyptian Satellite Company (Nilesat), GIZA | X | | | ROA |
| Vodafone Egypt Telecommunications S.A.E., GIZA | | | X | ROA / OPERATOR |
| EQUATORIAL GUINEA |
| Guinea Ecuatorial de Telecomunicaciones, Sociedad Anonima, A.P. 494 MALABO | | X | | ROA / OPERATOR |
| ERITREA |
| Eritrea Telecommunication Corporation Sh. Co. (EriTel), ASMARA | | | X | ROA / OPERATOR |
| FINLAND |
| Nokia Corporation, HELSINKI | X | X | X | SIO |
| FRANCE |
| Afnic, Montigny le Bretonneux | | X | X | OTHER ENTITY |
| AIRBUS GROUP, BLAGNAC CEDEX | X | | | SIO |
| ATDI, PARIS | X | | X | SIO |
| E-Space SAS, Toulouse | X | | | ROA / OPERATOR |
| Eutelsat S.A., ISSY-LES-MOULINEAUX | X | | X | ROA |
| Office des Postes et Télécommunications de Nouvelle-Calédonie, NOUMEA CEDEX | | X | | ROA / OPERATOR |
| Office des Postes et Télécommunications de Polynésie française (OPT), PAPEETE | | | X | ROA |
| Orange, PARIS | X | X | X | ROA |
| SAGEMCOM BROADBAND SAS, RUEIL-MALMAISON CÉDEX | | X | | SIO |
| TDF Group, MONTROUGE | X | | | SIO |
| Thales SA, LA DÉFENSE CEDEX | X | | | SIO |
| Vantiva SA, Paris | | X | | SIO |
| GERMANY |
| Bayernwerk AG, REGENSBURG | | X | | OTHER ENTITY |
| Deutsche Telekom AG, Bonn | X | X | | ROA |
| Deutsche Welle, BONN | | X | | ROA |
| Fraunhofer HHI & IIS, BERLIN | | X | | SIO |
| Huawei Technologies Düsseldorf GmbH, MUNICH | | X | | SIO |
| LS telcom AG, LICHTENAU | X | | X | SIO |
| Norddeutscher Rundfunk (NDR), HAMBURG | X | | | ROA |
| Rivada Space Networks GmbH, München | X | | | ROA / OPERATOR |
| Robert Bosch GmbH, Stuttgart | X | X | | SIO |
| Rohde & Schwarz GmbH & Co. KG, MÜNCHEN | X | X | X | SIO |
| Sennheiser Electronic GmbH & Co. KG, WEDEMARK | X | | | SIO |
| Telefónica Germany GmbH & Co. OHG, MÜNCHEN | X | | | ROA |
| Viavi Solutions Deutschland GmbH, ENINGEN, U.A. | | X | | SIO |
| Vodafone GmbH, DÜSSELDORF | | X | | ROA |
| VOLKSWAGEN AG, Wolfsburg | | X | | OTHER ENTITY |
| Zweites Deutsches Fernsehen, MAINZ | X | | | ROA |
| GHANA |
| Global Voice Group, Accra | | X | | OTHER ENTITY |
| Subah Infosolutions Ghana Limited, Accra | | X | | OTHER ENTITY |
| INDIA |
| Bharat Sanchar Nigam Ltd. (BSNL), NEW DELHI | | X | | ROA |
| Bharti Airtel Limited, GURGAON | X | X | X | ROA / OPERATOR |
| Reliance Jio Infocomm Limited, NAVI MUMBAI | X | X | X | ROA |
| Sterlite Technologies Limited, AURANGABAD | | X | | SIO |
| Telecom Disputes Settlement & Appellate Tribunal (TDSAT), CHANAKYAPURI, NEW DELHI | | | X | OTHER ENTITY |
| Telecom Regulatory Authority of India (TRAI), NEW DELHI | X | X | X | OTHER ENTITY / REGULATOR |
| Telecommunications Standards Development Society, India (TSDSI), New Delhi | X | X | | OTHER ENTITY |
| INDONESIA |
| PT Bank Rakyat Indonesia, JAKARTA | X | | | FDI |
| PT. Telekomunikasi Indonesia Tbk, JAKARTA SELATAN | | X | X | ROA |
| IRAN (ISLAMIC REPUBLIC OF) |
| Irancell Telecommunication Services Company, TEHRAN | | | X | ROA |
| Mobile Communication Company of Iran, TEHRAN | X | X | | ROA |
| Telecommunication Company of Iran (TCI), TEHRAN | X | X | X | ROA |
| IRAQ |
| Atheer Telecom Iraq Limited (Zain), BAGHDAD | | | X | ROA / OPERATOR |
| ISRAEL |
| Integration Silicon Solution Israel ISSI, TEL AVIV | | X | | SIO |
| ITALY |
| Deloitte Risk Advisory S.r.l., Milano | | | X | OTHER ENTITY |
| FastWeb S.p.A., MILANO NEXXT | | X | | ROA |
| Intermatica S.p.A., ROME | | X | | OTHER ENTITY |
| Prysmian SpA, MILANO | | X | | SIO |
| RAI - Radiotelevisione Italiana S.p.A., ROMA | X | | | ROA / OPERATOR |
| Rai Way S.p.A., ROMA | X | | | ROA |
| STMicroelectronics, AGRATE BRIANZA | | X | | SIO |
| Telecom Italia S.p.A., ROMA | X | X | | ROA |
| Telespazio S.p.A., ROMA | X | | | ROA |
| Wind Tre S.p.A., ROMA | X | X | | ROA |
| JAMAICA |
| Digicel Group, KINGSTON | | X | X | ROA |
| JAPAN |
| Aeterlink Corporation, hiyoda-ku, Tokyo-to | X | | | SIO / MANUFACTURER |
| Broadcasting Satellite System Corporation (B-SAT), TOKYO | X | | | ROA |
| Denso Corporation, Kariya | X | | | SIO |
| Fujitsu Limited, Tokyo | X | X | X | SIO |
| Hitachi Kokusai Electric Inc., Tokyo | X | | | SIO |
| Hitachi, Ltd., TOKYO | | X | X | SIO |
| Japan Aerospace Exploration Agency (JAXA), TOKYO | X | | | SIO |
| Japan Radio Air Navigation Systems Association, TOKYO | X | | | SIO |
| Japan Radio Co. Ltd., TOKYO | X | | | SIO |
| KDDI Corporation, TOKYO | X | X | X | ROA |
| Mitsubishi Electric Corporation, TOKYO | X | X | ASSOCIATE SG1 | SIO |
| Murata Manufacturing Company Ltd., NAGAOKAKYO-SHI | X | ASSOCIATE SG15 | | SIO |
| National Institute of Information and Communications Technology (NICT), TOKYO | X | X | X | SIO |
| NEC Corporation, TOKYO | X | X | X | SIO |
| Nippon Hoso Kyokai (NHK) (Japan Broadcasting Corporation), TOKYO | X | X | | ROA |
| Nippon Telegraph and Telephone Corporation (NTT), TOKYO | X | X | | SIO |
| Nippon Telegraph and Telephone East Corporation (NTT East), TOKYO | | | X | ROA |
| Nippon Telegraph and Telephone West Corporation (NTT West), OSAKA | | | X | ROA |
| Nomura Research Institute Ltd., TOKYO | | | X | ROA |
| NTT Communications Corporation, TOKYO | X | X | | ROA |
| NTT Comware Corporation, CHIBA | | X | | SIO |
| NTT DOCOMO, INC., TOKYO | X | X | | ROA |
| Oki Electric Industry Company Ltd. (OKI), TOKYO | X | X | | SIO |
| Panasonic Holdings Corporation, OSAKA | X | X | X | SIO |
| Rakuten Mobile, Inc., Tokyo | X | X | | ROA |
| Sharp Corporation, CHIBA | X | X | | SIO |
| SKY Perfect JSAT Corporation, TOKYO | X | | | ROA |
| SoftBank Corporation, TOKYO | X | X | X | ROA |
| Sony Group Corporation, TOKYO | X | X | | SIO |
| Sony Network Communications Inc., TOKYO | | X | | ROA / SERVICE PROVIDER |
| Sumitomo Electric Industries, Ltd., OSAKA | | X | | SIO |
| The ITU Association of Japan, TOKYO | X | X | X | SIO |
| The Japan Commercial Broadcasters Association, TOKYO | X | | | ROA / BROADCASTING SERVICE |
| Toshiba Corporation, MINATO-KU, TOKYO | X | X | | SIO |
| JORDAN |
| Jordan Mobile Telecommunications Services - Zain Jordan, AMMAN | | | X | ROA / OPERATOR |
| Orange Jordan, AMMAN | | X | X | ROA |
| KAZAKHSTAN |
| JSC Kazakhtelecom, NUR-SULTAN | | | X | ROA |
| KENYA |
| Airtel Networks Kenya Ltd., NAIROBI | | | X | ROA |
| Safaricom Limited, NAIROBI | X | X | X | ROA |
| KOREA (REP. OF) |
| Electronics and Telecommunications Research Institute (ETRI), DAEJEON | X | X | | SIO |
| Hyundai Motor Company, GYEONGGI-DO | | X | | OTHER ENTITY |
| Korea Information Society Development Institute (KISDI), JINCHEON-GUN | | | X | OTHER ENTITY |
| KT Corporation, SEOUL | X | X | X | ROA / OPERATOR |
| LG Electronics, Inc. Advanced Standard R&D Lab., SEOUL | X | | | SIO |
| LG Uplus, SEOUL | X | X | | ROA |
| Samsung Electronics Co., Ltd., SEOUL | X | X | | SIO |
| SK Telecom, SEOUL | X | X | | ROA |
| KUWAIT |
| Kuwait Telecommunication Company (STC), SALMIYA | | | X | ROA / OPERATOR |
| Mobile Telecommunications Company K.S.C.P., SAFAT | | X | | ROA |
| LEBANON |
| Mobile Interim Company 2, BEYROUTH | | | X | ROA |
| Ogero Telecom, BEIRUT | | | X | ROA / OPERATOR |
| Telecommunications Regulatory Authority, BEIRUT | X | | X | OTHER ENTITY / REGULATOR |
| LESOTHO |
| Econet Telecom Lesotho, MASERU | | X | | ROA |
| LIBYA |
| Libyana Mobile Phone, TRIPOLI | X | X | | ROA / OPERATOR |
| LITHUANIA |
| NRD Cyber Security (CS), VILNIUS | | | X | OTHER ENTITY |
| LUXEMBOURG |
| Millicom International Cellular S.A., Luxembourg | | | X | ROA |
| SES, BETZDORF | X | | | ROA |
| MALAWI |
| Telekom Networks Malawi Plc, BLANTYRE | | | X | ROA |
| MALAYSIA |
| Axiata Group Berhad, KUALA LUMPUR | | | X | OTHER ENTITY |
| Celcom Axiata Berhad, KUALA LUMPUR | X | | | ROA |
| Digital Nasional Berhad, WP Kuala Lumpur | X | | X | ROA |
| Maxis Broadband Sdn Bhd., KUALA LUMPUR | | | X | ROA |
| MEASAT Satellite Systems Sdn. Bhd., CYBERJAYA | X | | X | ROA |
| Telekom Malaysia Berhad, KUALA LUMPUR | | | X | ROA |
| TM Technology Services Sdn. Bhd. (formerly known as WEBE DIGITAL SDN. BHD), Kuala Lumpur | | | X | ROA / OPERATOR |
| U Mobile Sdn. Bhd., KUALA LUMPUR | | | X | ROA / OPERATOR |
| MALI |
| N-SOFT Technology SA, BAMAKO | | | X | SIO / MANUFACTURER |
| MAURITANIA |
| Mattel, NOUAKCHOTT | | | X | ROA |
| MAURITIUS |
| Liquid Intelligent Technologies Group, Ebene | | | X | SIO |
| MEXICO |
| América Móvil, S.A.B. de C.V., CIUDAD DE MÉXICO | X | X | X | ROA / OPERATOR |
| Mediafon de Mexico, Mexico City | | ASSOCIATE SG11 | X | SIO |
| Telecomunicaciones de México (TELECOMM), Ciudad de México | X | | X | ROA |
| MOLDOVA |
| JSC 'Moldtelecom', CHISINAU | | | X | ROA |
| MONGOLIA |
| Communications Regulatory Commission of Mongolia, ULAANBAATAR | | | X | OTHER ENTITY / REGULATOR |
| Information Communication Network Company (ICNC), ULAANBAATAR | | | X | ROA |
| MobiCom Corporation, ULAANBAATAR | | | X | ROA / MOBILE OPERATOR |
| MOROCCO |
| Maroc Télécom - Itissalat Al-Maghrib (IAM), RABAT | X | X | X | ROA |
| MOZAMBIQUE |
| KAMALEON, Maputo | | ASSOCIATE SG16 | X | SIO |
| NEPAL (REPUBLIC OF) |
| Ncell Axiata Limited, KATHMANDU | | | X | ROA / OPERATOR |
| Nepal Telecom (Nepal Doorsanchar Company Limited), KATHMANDU | | | X | ROA |
| Nepal Telecommunications Authority (NTA), KATHMANDU | X | X | X | OTHER ENTITY / REGULATOR |
| NETHERLANDS |
| Everbridge One2many, Deventer | | | X | OTHER ENTITY |
| Royal KPN N.V., THE HAGUE | X | X | | ROA |
| SES World Skies, THE HAGUE | X | | X | ROA |
| VEON Ltd., AMSTERDAM | | | X | ROA |
| NEW ZEALAND |
| Spark NZ Limited, WELLINGTON | X | | | ROA |
| NIGERIA |
| MTN Nigeria Communications Limited, LAGOS | | | X | ROA / OPERATOR |
| Nigerian Communications Satellite Ltd. (NIGCOMSAT), ABUJA | X | | | ROA |
| Pinnacle Communications Limited, ABUJA | X | | | ROA |
| NORTH MACEDONIA |
| Makedonski Telekom AD - Skopje, SKOPJE | | | X | ROA |
| NORWAY |
| Space Norway AS, Oslo | X | | | OTHER ENTITY |
| Telenor ASA, FORNEBU | X | | X | ROA |
| OMAN |
| Oman Telecommunications Company (Omantel), RUWI | X | X | X | ROA |
| Oman Telecommunications Regulatory Authority (TRA), RUWI | X | X | X | OTHER ENTITY / REGULATOR |
| PAKISTAN |
| Pakistan Mobile Communications Limited (PMCL), ISLAMABAD | | | X | ROA / OPERATOR |
| Telenor Pakistan (Pvt) Ltd., ISLAMABAD | | | X | ROA / OPERATOR |
| PANAMA |
| Cable & Wireless Panamá S.A., PANAMÁ | | | X | ROA |
| PERU |
| Organismo Supervisor de Inversión Privada en Telecomunicaciones (OSIPTEL), LIMA | | X | X | OTHER ENTITY / REGULATOR |
| PHILIPPINES |
| DITO Telecommunity Corporation, Taguig City | | X | | ROA / OPERATOR |
| Globe Telecom, Inc., Tagulg | | X | | ROA |
| Philippine Long Distance Telephone Co. (PLDT), MAKATI CITY | | X | | ROA |
| Smart Communications, Inc.(SCI), MAKATI CITY | | | X | ROA |
| POLAND |
| Orange Polska S.A., WARSAW | X | X | | ROA |
| Polkomtel Sp. z o.o., WARSAW | X | X | | ROA |
| PORTUGAL |
| MEO - Serviços de Comunicações e Multimédia, S.A., LISBOA | X | X | X | ROA |
| QATAR |
| MADA - Qatar Assistive Technology Center, Doha | | | X | OTHER ENTITY |
| Qatar Satellite Company, DOHA | X | | | ROA |
| ROMANIA |
| Orange Romania Communications S.A., BUCHAREST | | X | | ROA |
| SOCIETATEA NATIONALA DE RADIOCOMUNICATII S.A. (RADIOCOM), BUCHAREST | X | | | ROA |
| RUSSIAN FEDERATION |
| Center for Global IT-Cooperation, Moscow | | | X | OTHER ENTITY |
| Coordination Center for National TLD., MOSCOW | | | X | OTHER ENTITY |
| Joint-Stock Company National Radio Technical Bureau, MOSCOW | X | | | ROA |
| MegaFon Open Joint Stock Company, MOSCOW | X | ASSOCIATE SG2 | | ROA |
| OJSC 'Multiregional TransitTelecom', MOSCOW | | X | | ROA |
| PJSC «Rostelecom», MOSCOW | | X | | ROA / OPERATOR |
| SAUDI ARABIA |
| Etihad Atheeb Telecom Company (GO), RIYADH | | | X | ROA / OPERATOR |
| Integrated Telecom Company, RIYADH | | | X | ROA / OPERATOR |
| Mobily Company, RIYADH | X | X | X | ROA / OPERATOR |
| Saudi Telecom, RIYADH | X | X | X | ROA / OPERATOR |
| Zain Saudi Arabia, RIYADH | | | X | ROA / OPERATOR |
| SENEGAL |
| Société Nationale des Télécommunications du Sénégal (SONATEL), DAKAR | X | X | X | ROA |
| SERBIA |
| Emisiona Tehnika i Veze (ETV), BELGRADE | | | X | ROA |
| SINGAPORE |
| Global Esports Federation, Singapore | | X | | OTHER ENTITY |
| Kacific Broadband Satellites Ltd., Singapore | | | X | SIO / SERVICE PROVIDER |
| Welchman Keen Pte. Ltd., Singapore | | | X | OTHER ENTITY |
| SOMALIA |
| Hormuud Telecom Somalia, MOGADISHU | | X | | ROA |
| Telesom Company | | X | | ROA / SERVICE PROVIDER |
| SOUTH AFRICA |
| MTN Group Management Services (Pty) Ltd., Cresta | X | ASSOCIATE SG2 | X | ROA |
| Orbicom (Pty) Ltd., RANDBURG, GAUTENG | X | | | ROA |
| Sentech Ltd., HONEYDEW | | | X | ROA |
| Telkom SA SOC Ltd., CENTURION | X | X | X | ROA |
| Vodacom SA (Pty) Limited, MIDRAND | X | X | X | ROA |
| SPAIN |
| Axon Partners Group, Madrid | | | X | OTHER ENTITY |
| Cellnex Telecom, S.A., BARCELONA | X | | | ROA |
| HISPASAT, S.A., Alcobendas, Madrid | X | | | ROA |
| Indra Sistemas, Alcobendas | X | | | SIO |
| Telefónica S.A., MADRID | X | X | X | ROA |
| SUDAN |
| MTN Sudan, KHARTOUM | | | X | ROA / OPERATOR |
| Sudanese Mobile Telephone Company, Zain, KHARTOUM | X | | X | ROA / OPERATOR |
| Sudatel Telecom Group, KHARTOUM | | | X | ROA |
| SWEDEN |
| Huawei Technologies Sweden AB, KISTA | X | | | SIO |
| PROGIRA Radio Communication AB, Luleå | X | | | SIO |
| SES ASTRA AB, SOLNA | X | | | ROA |
| Telefon AB - LM Ericsson, STOCKHOLM | X | X | X | SIO |
| Telia Company AB, STOCKHOLM | X | X | | ROA |
| SWITZERLAND |
| Dreamlab Technologies AG, Bern | | | X | OTHER ENTITY |
| HUAWEI Technologies Switzerland AG, Liebefeld | | X | | SIO |
| ImmuniWeb SA, Geneva | | | X | SIO |
| QRC AAA Sarl, Fribourg | | X | | OTHER ENTITY |
| SEMTECH (International) AG, Rapperswil | | X | | SIO |
| Swisscom SA, BERNE | X | X | X | ROA |
| World's Global Telecom S.A., Lucerne | | X | | SIO / SERVICE PROVIDER |
| SYRIAN ARAB REPUBLIC |
| Syrian Telecom (ST), DAMASCUS | | X | X | ROA / OPERATOR |
| Syriatel Mobile Telecom SA, DAMASCUS | | | X | ROA |
| THAILAND |
| Advanced Info Service Public Co. Ltd., PHYATHAI, BANGKOK | | | X | ROA / OPERATOR |
| Advanced Wireless Network Company Limited, Bangkok | | | X | ROA / OPERATOR |
| Total Access Communication Plc (dtac), BANGKOK | | | X | ROA / OPERATOR |
| True Corporation Public Company Limited, BANGKOK | | | X | ROA |
| TRINIDAD AND TOBAGO |
| Telecommunications Authority of Trinidad and Tobago (TATT), BARATARIA | X | X | X | OTHER ENTITY / REGULATOR |
| TUNISIA |
| Smart Tunisian Technoparks, ARIANA | | | X | OTHER ENTITY |
| Tunisie Télécom, TUNIS | | X | X | ROA |
| TüRKIYE |
| Sigma Telecom (Sigma Telekom ve Haberlesme Tic. Ltd.), Istanbul | | | X | ROA |
| TT Mobil İletişim Hizmetleri AŞ, ISTANBUL | | | X | ROA / OPERATOR |
| Turkcell Iletisim Hizmetleri A.S., ISTANBUL | | X | X | ROA / OPERATOR |
| TURKSAT Uydu Haberlesme Kablo TV ve isletme A.S., ANKARA | X | | | ROA |
| Türk Telekom A.S., ISTANBUL | X | X | X | ROA |
| UKRAINE |
| State Enterprise 'Ukrainian State Centre of Radio Frequencies', KYIV | X | | | OTHER ENTITY |
| UNITED ARAB EMIRATES |
| Al Yah Satellite Communications (YahSat), ABU DHABI | X | X | X | ROA |
| Emirates Integrated Telecommunications Company PJSC, DUBAI | X | X | | ROA / OPERATOR |
| Emirates Telecommunication Corporation - Etisalat, DUBAI | X | X | X | ROA |
| UNITED KINGDOM |
| ABS, HAMILTON | X | | | OTHER ENTITY |
| Access Partnership Limited, LONDON | X | | X | SIO |
| Airbus Defence and Space Ltd, CORSHAM | X | | | ROA |
| ApplianSys, Coventry | | | X | OTHER ENTITY |
| ARM Limited, CAMBRIDGE | | ASSOCIATE SG2 | X | ROA / SERVICE PROVIDER |
| Avanti Hylas 2 Limited, LONDON | X | | X | ROA / OPERATOR |
| British Broadcasting Corporation (BBC), LONDON | X | | | ROA |
| British Telecommunications Plc. (BT Plc), LONDON | X | X | | ROA |
| Cable & Wireless Communications Plc, LONDON | | X | | ROA |
| Encompass Digital Media Services Limited, London | X | | | ROA |
| Inmarsat Global Limited, LONDON | X | X | X | ROA |
| Netscout, IPSWICH | | X | | SIO |
| Nuix Technology UK Limited, London | | | X | FDI / CONSULTANT |
| Omnispace UK Limited, HIGH WYCOMBE | X | | | SIO |
| OneWeb, LONDON | X | X | X | ROA / SERVICE PROVIDER |
| RTFM LLP, GLASGOW | | X | | OTHER ENTITY |
| SES Satellites (Gibraltar) Limited, LONDON | X | | | ROA |
| Tata Communications UK Limited, London | | X | | ROA |
| Vodafone Group Services Ltd, NEWBURY | X | X | X | ROA |
| World Mobile Group Ltd., London | | ASSOCIATE SG2 | X | ROA |
| UNITED STATES |
| ACES Inc., Washington | X | | | OTHER ENTITY |
| ADTRAN Holdings Inc., HUNTSVILLE | | X | | SIO |
| Amazon Web Services, Inc., Seattle | | | X | SIO |
| Amazon.com Services, LLC, Redmond | X | | X | SIO |
| American Tower Corporation, BOSTON | X | | X | ROA |
| Apple Inc., CUPERTINO | X | X | | SIO |
| AST & Science SpaceMobile, Midland | | | X | OTHER ENTITY |
| AT&T, Inc., ATLANTA | X | X | X | ROA |
| Aviation Spectrum Resources, Inc., ANNAPOLIS | X | | | ROA |
| BitSight Technologies, Inc., BOSTON | | | X | SIO |
| Broadcom Corporation, IRVINE | | X | | SIO |
| Cisco Systems, Inc., SAN JOSE | X | X | X | SIO |
| Corning Incorporated, CORNING | | X | | SIO |
| Corporation for National Research Initiatives, RESTON | | ASSOCIATE SG17 | X | SIO |
| Dish Network, WASHINGTON | X | | | ROA / OPERATOR |
| DLA Piper, Washington | X | | | OTHER ENTITY / CONSULTANT |
| Dolby Laboratories, SAN FRANCISCO | | X | | SIO |
| E-Space Inc., Stuart | | | X | SIO |
| EchoStar Operating LLC, GERMANTOWN | X | | | SIO |
| Entirety LLC, Mount Dora | X | | | OTHER ENTITY |
| Five 9 Inc., San Ramon | | X | | OTHER ENTITY |
| Frontier Communication, Lewisville, TX | X | X | | SIO / SERVICE PROVIDER |
| Globalstar, Inc., MILPITAS | X | X | | ROA |
| Google Inc., MOUNTAIN VIEW | X | | | SIO |
| Hewlett Packard Enterprise, Spring | | X | X | SIO |
| Hughes Network Systems, LLC, GERMANTOWN | | | X | ROA |
| IBM, POUGHKEEPSIE | | X | | SIO |
| Infinera Corporation, SUNNYVALE | | X | | SIO |
| Intel Corporation, SANTA CLARA | X | X | X | SIO |
| Intelsat US LLC, McLean | X | | X | ROA |
| InterDigital Communications, Inc., CONSHOHOCKEN | X | X | | SIO |
| Iridium Satellite LLC., MCLEAN | X | ASSOCIATE SG2 | X | ROA |
| ITRI International Inc., SAN JOSE | X | | | SIO |
| Juniper Networks, SUNNYVALE | | X | | SIO |
| Keysight Technologies, Inc., SANTA ROSA | X | ASSOCIATE SG12 | | SIO / MANUFACTURER |
| Kratos Communications, ALEXANDRIA | X | | | SIO |
| Ligado NETWORKS LLC, RESTON | X | | | SIO |
| Lockheed Martin Corporation (LMC), ARLINGTON | X | X | X | ROA |
| Maxlinear Inc, CARLSBAD | | X | | SIO |
| Meta Platforms, Inc., MENLO PARK | X | | X | SIO |
| Microchip Technology Inc., SAN JOSE | | X | | SIO |
| Microsoft Corporation, REDMOND | X | X | X | SIO |
| Motorola Mobility LLC, CHICAGO | X | | | SIO |
| Motorola Solutions Inc., WASHINGTON | X | | | SIO |
| Mozilla Corporation, San Francisco | | ASSOCIATE SG3 | X | OTHER ENTITY |
| Netflix Inc., LOS GATOS | | X | X | SIO / SERVICE PROVIDER |
| Neustar Inc., Reston | | | X | OTHER ENTITY |
| Nokia USA, MURRAY HILL | | X | | SIO |
| Omnispace, LLC, TYSONS | | | X | ROA |
| Planet Labs PBC, San Francisco | X | | | SIO / SERVICE PROVIDER |
| Plantronics, Inc., SANTA CRUZ | | X | | SIO |
| Qualcomm, Inc., SAN DIEGO | X | X | X | SIO |
| Raytheon Technologies, WALTHAM | X | | | SIO |
| RKF Engineering Solutions, LLC, Bethesda | X | | X | OTHER ENTITY |
| Shure Incorporated, Niles | X | | | SIO |
| SomosGov Inc., East Brumwick | | X | | OTHER ENTITY |
| Space Exploration Technologies Corp. (SpaceX), Washington D.C. | X | | X | SIO / MANUFACTURER |
| T-Mobile USA, Inc, Bellevue | X | ASSOCIATE SG16 | | ROA |
| Telecommunications Management Group Inc., ARLINGTON | | | X | OTHER ENTITY |
| The Boeing Company, ARLINGTON | X | | | SIO |
| The Walt Disney Company, WASHINGTON D.C. | | | X | OTHER ENTITY |
| United Nations Foundation (Digital Impact Alliance), Washington | | | X | FDI |
| Verizon Communication Corporation, Basking Ridge | X | X | X | ROA |
| Viasat, Inc., CARLSBAD | X | | X | ROA |
| XPERI, LOS GATOS | ASSOCIATE SG6 | X | | SIO / MANUFACTURER |
| XPRIZE Foundation Inc., Culver City | | X | | OTHER ENTITY |
| Zenaciti Corporation, Beaverton | | X | | SIO |
| VIET NAM |
| FPT Corporation, Hanoi | | | X | SIO |
| Viettel Group, HANOI | X | | | ROA |
| YEMEN |
| Public Telecom Corporation (PTC), Aden | | | X | ROA |
| Yemen Company for Mobile Telephony - Sabafon, Aden | | | X | ROA |
| ZIMBABWE |
| Econet Wireless (PVT) Ltd., HARARE | | | X | ROA |
| 399 Sector Members (ITU-R=196, ITU-T=190, ITU-D=193, any=399; Associates: ITU-R=2, ITU-T=12, ITU-D=1, any=15). |
| Name | ITU-R | ITU-T | ITU-D | Categories |
| African Civil Society for the Information Society (ACSIS), DAKAR | | | X | REGINTORG |
| African ICT Consumers Network (AICN), COTONOU | | X | X | REGINTORG |
| African Network Information Centre Ltd., EBENE | | | X | REGINTORG |
| African Organization for Standardisation, Nairobi | | X | | REGINTORG |
| African Union of Broadcasting, DAKAR | X | X | X | REGINTORG |
| African Union, ADDIS ABABA | X | X | X | REGINTORG |
| Alliance for Telecommunications Industry Solutions, WASHINGTON | X | | | REGINTORG |
| American Registry for Internet Numbers (ARIN), Centreville | | X | X | REGINTORG |
| Arab Business Forum for Information and Communication Technology, CAIRO | | | X | REGINTORG |
| Arab Information and Communication Technology Organization (AICTO), TUNIS | X | X | X | REGINTORG |
| Arab Private Broadcasting Union, QURTOBA | X | X | X | REGINTORG |
| Arab Regulators Network, ALGIERS | X | X | X | REGINTORG |
| Arab States Broadcasting Union, TUNIS | X | | X | REGINTORG |
| ASECNA, Dakar | X | | | REGINTORG / RADIO SPECTRUM |
| Asia Pacific Network Information Centre, BRISBANE | | X | X | REGINTORG |
| Asia-Pacific Broadcasting Union, KUALA LUMPUR | X | X | X | REGINTORG |
| Asia-Pacific Institute for Broadcasting Development, KUALA LUMPUR | | | X | REGINTORG |
| Asociación de Reguladores Administrador del Foro Latinoamericano de Entes Reguladores de Telecomunicaciones, BOGOTA | X | X | X | REGINTORG |
| Asociación Interamericana de Empresas de Telecomunicaciones, MADRID | X | X | X | REGINTORG |
| Association for Progressive Communications, MELVILLE | X | | X | REGINTORG |
| Association of Andean Community Telecommunications Enterprises, QUITO | X | X | X | REGINTORG |
| Associação de Reguladores de Comunicações e Telecomunicações da Comunidade dos Países de Língua Portuguesa (ARCTEL-CPLP), LISBOA | | | X | REGINTORG |
| Associação Empresarial de Comunicações de Portugal, COIMBRA | | | X | REGINTORG |
| Associação Internacional das Comunicações de Expressão Portuguesa, LISBOA | | X | X | REGINTORG |
| Broadcast Networks Europe, BRUXELLES | X | | | REGINTORG |
| CableLabs, Louisville | | X | | REGINTORG / R&D INSTITUTION |
| Caribbean Broadcasting Union, BRIDGETOWN | X | | X | REGINTORG |
| Centre for Environment and Development for the Arab Region and Europe, CAIRO | | X | X | REGINTORG |
| Child Helpline International, AMSTERDAM | | X | X | REGINTORG |
| Committee on Radio Astronomy Frequencies, OXFORD | X | | | REGINTORG |
| Committee on Space Research, PARIS | X | | | REGINTORG |
| Common Market for Eastern and Southern Africa, Lusaka | X | X | X | REGINTORG |
| Commonwealth ITU Group, LONDON | X | X | X | REGINTORG |
| Commonwealth Telecommunications Organisation, LONDON | X | X | X | REGINTORG |
| Communauté économique des Etats de l'Afrique centrale, LIBREVILLE | X | X | X | REGINTORG |
| Consortium d'Appui aux Actions pour la Promotion et le Développement de l'Afrique (CAPDA), DOUALA | | | X | REGINTORG |
| Consumers International, LONDON | | X | X | REGINTORG |
| Cooperation Council for the Arab States of the Gulf, MANAMA | X | X | X | REGINTORG |
| Diaspora africaine pour la société de l'information, ONEX | | | X | REGINTORG |
| Digital Cooperation Organization, Riyadh | | | X | REGINTORG |
| Digital Opportunity Trust, OTTAWA | | | X | REGINTORG |
| Digital Radio Mondiale, LONDON | X | | X | REGINTORG |
| Dominic Foundation, PARADISO | | X | X | REGINTORG |
| East African Communications Organization, KIGALI | X | X | X | REGINTORG |
| East African Community, ARUSHA | | | X | REGINTORG |
| Eastern Caribbean Telecommunications Authority, CASTRIES | | | X | REGINTORG |
| Ecole Supérieure Multinationale des Télécommunications, DAKAR | X | X | X | REGINTORG |
| Economic Community for West African States, ABUJA | X | X | X | REGINTORG |
| ECPAT International, Bangkok | | | X | REGINTORG |
| European Broadcasting Union, GRAND-SACONNEX | X | X | X | REGINTORG |
| European Communications Office, COPENHAGEN K | X | X | X | REGINTORG |
| European Competitive Telecommunications Association, BRUSSELS | X | X | X | REGINTORG |
| European Patent Office, MÜNCHEN | | X | | REGINTORG |
| European Radio Amateurs' Organization, Sabadell | X | | | REGINTORG |
| European Telecommunications Network Operators' Association, BRUSSELS | X | X | X | REGINTORG |
| European Telecommunications Standards Institute, SOPHIA ANTIPOLIS CEDEX | X | X | X | REGINTORG |
| European Union, BRUSSELS | X | X | X | REGINTORG |
| Fiber Connect Council MENA Region, AMMAN | | | X | REGINTORG |
| Forum of Incident Response and Security Teams (FIRST), MORRISVILLE | | X | X | REGINTORG |
| FTTH Council Asia-Pacific, SINGAPORE | | | X | REGINTORG |
| G3ict - Global Initiative for Inclusive Information and Communication Technologies, ATLANTA | X | X | X | REGINTORG |
| GCC Standardization Organization (GSO), Riyadh | | X | | REGINTORG |
| Global ICT Standardization Forum for India (GISFI), PUNE | | X | | REGINTORG |
| Global Knowledge Partnership Foundation, GIJON-ASTURIAS | | | X | REGINTORG |
| Global Satellite Operators’ Association GSOA, BRUSSELS | X | | X | REGINTORG |
| Global VSAT Forum Limited, London | | | X | REGINTORG |
| GSM Association, LONDON | X | X | X | REGINTORG |
| HFCC-International Broadcasting Delivery, Praha 2 | X | | | REGINTORG |
| IJMA3-The Arab ICT Organization, BEIRUT | | X | X | REGINTORG |
| Indigenous Peoples ICT Task Force, GENÈVE | | | X | REGINTORG |
| Institute of Electrical and Electronics Engineers, Inc. (IEEE), Piscataway, NJ | X | X | X | REGINTORG |
| International Air Transport Association, MONTREAL | X | X | X | REGINTORG |
| International Amateur Radio Union, NEWINGTON | X | | X | REGINTORG |
| International Association of Broadcasting, MONTEVIDEO | X | | | REGINTORG |
| International Association of IT Lawyers (IAITL), HELLERUP | | X | | REGINTORG |
| International Association of Marine Aids to Navigation and Lighthouse Authorities, ST. GERMAIN EN LAYE | X | | | REGINTORG |
| International Astronautical Federation IAF Secretariat, PARIS | X | | | REGINTORG |
| International Astronomical Union, PARIS | X | | | REGINTORG |
| International Bureau of Weights and Measures, SEVRES CÉDEX | X | | | REGINTORG |
| International Center for Disability Resources on the Internet (ICDRI), ALEXANDRIA | | X | | REGINTORG |
| International Center for Promotion of Enterprises, LJUBLJANA | | | X | REGINTORG |
| International Chamber of Commerce, Paris | | | X | REGINTORG |
| International Committee of the Red Cross, GENÈVE | X | X | X | REGINTORG |
| International Council for Science, PARIS | X | | | REGINTORG |
| International Council on Large Electric Systems, PARIS | X | | | REGINTORG |
| International Electrotechnical Commission, GENÈVE 20 | X | X | X | REGINTORG |
| International Federation for Information Processing (IFIP), LAXENBURG | | X | X | REGINTORG |
| International Maritime Radio Association, LONDON | X | X | | REGINTORG |
| International Mobile Satellite Organization (IMSO), LONDON | X | X | X | REGINTORG |
| International Multilateral Partnership Against Cyber Threats (IMPACT), CYBERJAYA | | X | | REGINTORG |
| International Organization for Standardization, VERNIER, GENEVA | X | X | X | REGINTORG |
| International Special Committee on Radio Interference, YATELEY | X | | | REGINTORG |
| International Telecommunications Satellite Organization, WASHINGTON, DC | X | X | X | REGINTORG |
| International Telecommunications Users Group, KEERBERGEN | | X | X | REGINTORG |
| Internet Corporation for Assigned Names and Numbers (ICANN), Los Angels | | | X | REGINTORG |
| Internet Society, GENEVA | | X | X | REGINTORG |
| Internet Systems Consortium, Newmarket | | X | X | REGINTORG |
| ITU-APT Foundation of India (IAFI), NEW DELHI | X | X | X | REGINTORG |
| Mandat International, Geneva | | X | | REGINTORG |
| Mobile & Wireless Forum IVZW, Merelbeke | | | X | REGINTORG |
| NetHope Inc, FAIRFAX | | | X | REGINTORG |
| North American Broadcasters Association (NABA), TORONTO | X | | | REGINTORG |
| Open Geospatial Consortium, WAYLAND | X | X | X | REGINTORG |
| Organisation Internationale de la Francophonie (OIF), Paris | X | X | X | REGINTORG |
| Pacific Islands Telecommunications Association, SUVA | X | X | X | REGINTORG |
| Personal Connected Health Alliance, CHICAGO | X | X | X | REGINTORG |
| Registro de Direcciones de Internet para América Latina y Caribe - LACNIC, Montevideo | | X | X | REGINTORG |
| Réseaux IP Européens Network Coordination Centre (RIPE NCC), AMSTERDAM | | X | X | REGINTORG |
| SAMENA Telecommunications Council, DUBAI | | | X | REGINTORG |
| Scientific Committee on Frequency Allocations for Radio Astronomy and Space Science (IUCAF), CHARLOTTESVILLE | X | | | REGINTORG |
| Sintesio Foundation, KRANI | | | X | REGINTORG |
| Society of Motion Picture and Television Engineers, WHITE PLAINS | X | | | REGINTORG |
| Southern Africa Telecentre Networks, LUSAKA | X | X | X | REGINTORG |
| Southern African Development Community, GABORONE | X | X | X | REGINTORG |
| Square Kilometre Array Observatory, MACCLESFIELD | X | | | REGINTORG |
| Techfugees Foundation, London | | | X | REGINTORG |
| Telecentre.org Foundation, QUEZON CITY | | | X | REGINTORG |
| The Abdus Salam International Centre for Theoretical Physics, TRIESTE | | | X | REGINTORG |
| The Asia-Pacific Satellite Communications Council, KYUNGI-DO | X | | | REGINTORG |
| The European Organisation for the Safety of Air Navigation (EUROCONTROL), BRUXELLES | X | | | REGINTORG |
| Union Economique et Monétaire Ouest Africaine, OUAGADOUGOU | | X | X | REGINTORG |
| United Kingdom Telecommunications Academy (UKTA), BRACKLEY HATCH | | X | X | REGINTORG |
| URSI-International Union of Radio Science, GENT | X | X | X | REGINTORG |
| WebForce International Federation, NARBONNE | | | X | REGINTORG |
| West Africa Telecommunications Regulators Assembly, ABUJA | X | X | X | REGINTORG |
| Wireless World Research Forum, Zürich | X | X | X | REGINTORG |
| World Association of Community Radio Broadcasters, PARIS | X | | X | REGINTORG |
| World Broadcasting Unions - Technical Committee, TORONTO | X | | | REGINTORG |
| World Wide Web Foundation, Washington, DC | | | X | REGINTORG |
| WorldDAB Forum, LONDON | X | | | REGINTORG |
| 130 Sector Members (ITU-R=73, ITU-T=70, ITU-D=97, any=130). |
