| Code | Carrier | Country |
|---|---|---|
| 1000 | International Communications in Liechtenstein ITL LTD | LIE |
| 1001 | sunrise communications | LIE |
| 1010 | Telecom FL AG | LIE |
| 1011 | Intercross AG | LIE |
| 1020 | NETnet AG | LIE |
| 1022 | Tele2 AG | LIE |
| 1024 | TelePassport AG | LIE |
| 1076 | Tele2 AG | LIE |
| 1080 | TelePassport AG | LIE |
| 1099 | Mobilkom Liechtenstein AG | LIE |