| APPU | APT | IntelSat | InterSputnik | UPU |
| Name in abbreviation | Full name |
Headquarter |
| ADB | Asian
Development Bank |
Manila (Philippines) |
| APPU | Asian
Pacific Postal Union |
(Singapore) |
| ATU | Arab
Telecommunication Union |
Geneva (Switzeland) |
| APCCT | The Asian
and Pacific Centre for Transfer of Technology. |
NewDelhi (India) |
| APT | Asia -
Pacific Telecommunity |
Bangkok (Thailand) |
| AIBD | Asia-Pacific Institute for Broadcasting Development | Kuala-Lampur (Malaysia) |
| AIT | Asian Institute of Technology | Bangkok (Thailand) |
| APEC | Asia-Pacific Economic Corporation | Singapore |
| ABU | Asia-Pacific Broadcasting Union | Kuala- Lampur |
| BDT | Telecommunication Development Bureau | Geneva (Switzeland) |
| CCITT | Intern Telegraph and Telephone consultative Committee | Geneva (Switzeland) |
| CCIR | International Radio Consultative committee | Geneva (Switzeland) |
| CEE | United Nationas Economic commission for Europe | Geneva (Switzeland) |
| CEI | International Electronical commission | Geneva (Switzeland) |
| CEN | European Committee for Standardization | Courbavier (France) |
| CENELEC | European Committee for Electrotechnical Standardization | Brucxell (Belgium) |
| CENDHRRA | Centre for
the Development of Human resources in Rural Asia |
Manila (Philippines) |
| CEPAL | United
Nations Economic Commission for Latin America |
Santiago (Chile) |
| CEPT | European
Conference of Posts and Telecommunications Administrations |
|
| CITEL | Committee for
Inter-American Telecommunications |
Buenos-
Aires (Argentina) |
| ESCAP | Economic and social
commission for Asia and the Pacific |
(Thailand) |
| ETSI | European Telecommunications standards institute | (France) |
| FITCE | Federation of Telecom
-Engineers of the European Community |
Brusell |
| IBRD | International Bank
for reconstruction and Development |
Washington (USA) |
| IDA | International
Development Association |
Washington (USA) |
| IEEE | The Institute of
Electrical and Electronic Engineers |
New-York ( USA) |
| IPC | International Finance
Corporation |
Washington (USA) |
| IFRB | International
Frequency registration Board |
Geneva (Switzerland) |
| IMF | International
Monetary Fund |
Washington (USA) |
| Intelsal | International
Telecommunication Satellitle Organization |
Washington (USA) |
| Intersputnik | Tæ chøc th«ng tin vÖ tinh quèc tÕ | Moscow (Russia) |
| ISO | International
Organization for Standardization |
Geneva (Switzerland) |
| ITU | International
Telecommunication Union |
Geneva (Switzerland) |
| PATU | PanAfrican
Telecommunication Union |
Kingsasha (Zaire) |
| PECC | Pacific Economic
Cooperation Council |
Singapore |
| PTC | Pacific
Telecommunications Council |
Hawaii (USA) |
| RACE | Research and
Development in Advanced Communications Technologies in European |
Paris (France) |
| UAPT | African Postal and
Telecommunication Union |
Brazaville (Congo) |
| UNIDO | United Nations
Industrial Development Organization |
Vienna ( Austria ) |
| UPU | Universal Postal
Union |
Berne (Switzerland) |
| USTA | United states
Telephone Association |
Washington (USA) |