| euskara | eus-000 |
| Request For Comments | |
| bălgarski ezik | bul-001 | Request for Comments |
| català | cat-000 | Request for Comments |
| čeština | ces-000 | RFC |
| 普通话 | cmn-000 | RFC |
| 國語 | cmn-001 | RFC |
| dansk | dan-000 | Request for Comments |
| Deutsch | deu-000 | Request for Comments |
| eesti | ekk-000 | RFC |
| ελληνικά | ell-000 | RFC |
| English | eng-000 | Request for Comments |
| Esperanto | epo-000 | Request for Comments |
| suomi | fin-000 | RFC |
| français | fra-000 | Request for comments |
| עברית | heb-000 | RFC |
| italiano | ita-000 | Request for Comments |
| 日本語 | jpn-000 | Request for Comments |
| Hangungmal | kor-001 | RFC |
| Nederlands | nld-000 | Request For Comments |
| bokmål | nob-000 | Request For Comments |
| polski | pol-000 | Request For Comment |
| português | por-000 | RFC |
| русский | rus-000 | RFC |
| slovenščina | slv-000 | Zahteva za mnenja |
| español | spa-000 | Request For Comments |
| svenska | swe-000 | Request for Comments |
| tiếng Việt | vie-000 | RFC |