| English | eng-000 |
| X.25 | |
| bosanski | bos-000 | X.25 |
| čeština | ces-000 | X.25 |
| 普通话 | cmn-000 | X.25 |
| 普通话 | cmn-000 | 协议名 |
| 國語 | cmn-001 | X.25 |
| dansk | dan-000 | X.25 |
| Deutsch | deu-000 | X.25 |
| euskara | eus-000 | X.25 |
| français | fra-000 | X.25 |
| hrvatski | hrv-000 | X. 25- priopćajni protokol |
| hrvatski | hrv-000 | protokol X.25 |
| italiano | ita-000 | X.25 |
| 日本語 | jpn-000 | X.25 |
| Hangungmal | kor-001 | X.25 |
| Nederlands | nld-000 | X.25 |
| polski | pol-000 | X.25 |
| português | por-000 | X.25 |
| русский | rus-000 | X.25 |
| русский | rus-000 | протокол X.25 |
| español | spa-000 | Norma X.25 |
| svenska | swe-000 | X.25 |
| ภาษาไทย | tha-000 | X.25 |
| Türkçe | tur-000 | X.25 |