| Prysmian SpA |
Italy |
1966 |
| Nokia Corporation |
Finland |
1967 |
| Compañía Anónima Nacional Teléfonos de Venezuela (CANTV) |
Venezuela |
1968 |
| Deutsche Welle |
Germany |
1968 |
| JDSU Deutschland GmbH |
Germany |
1968 |
| Norddeutscher Rundfunk (NDR) |
Germany |
1968 |
| British Telecommunications Public Ltd. Co. (BT Plc) |
United Kingdom |
1969 |
| Zweites Deutsches Fernsehen |
Germany |
1969 |
| Telesat Canada |
Canada |
1970 |
| Empresa Brasileira de Telecomunicações S.A. (EMBRATEL) |
Brazil |
1971 |
| Philippine Long Distance Telephone Co. (PLDT) |
Philippines |
1975 |
| Intelsat |
United States |
1976 |
| Eutelsat S.A. |
France |
1982 |
| KT Corporation |
Korea (Rep. of) |
1982 |
| C.B.S., Inc. |
United States |
1983 |
| Corning Incorporated |
United States |
1983 |
| Motorola Solutions Inc. and Motorola Mobility LLC |
United States |
1984 |
| Zain Kuwait |
Kuwait |
1984 |
| CANON Inc. |
Japan |
1985 |
| Fujitsu Limited |
Japan |
1985 |
| Hitachi, Ltd. |
Japan |
1985 |
| Mitsubishi Electric Corporation |
Japan |
1985 |
| NEC Corporation |
Japan |
1985 |
| OKI Electric Industry Company Ltd. (OKI) |
Japan |
1985 |
| Toshiba Corporation |
Japan |
1985 |
| Cisco Systems, Inc. |
United States |
1986 |
| Telecom New Zealand (Spark NZ Limited) |
New Zealand |
1987 |
| MEO – Serviços de Comunicações e Multimédia, S.A. |
Portugal |
1989 |
| Royal KPN N.V. |
Netherlands |
1989 |
| SES ASTRA S.A |
Luxembourg |
1989 |
| Abertis Telecom Terrestre, S.L. |
Spain |
1990 |
| HISPASAT, S.A. |
Spain |
1990 |
| Sony Corporation |
Japan |
1990 |
| Hughes Network Systems, Inc. |
Unites States |
1990 |
| Japan Radio Co. Ltd. |
Japan |
1990 |
| CenturyLink |
United States |
1990 |
