| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 3123 | Stallhofen | Styria | — | Austria | Europe/Vienna |
| 3137 | Söding | Styria | — | Austria | Europe/Vienna |
| 3142 | Köflach | Styria | 10,447 | Austria | Europe/Vienna |
| 3143 | Krottendorf | Styria | — | Austria | Europe/Vienna |