| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 4526 | Sokolnik, Bulgaria | Dobrich Province | — | Bulgaria | Europe/Sofia |
| 5117 | Botevo, Montana Province | Montana Province | — | Bulgaria | Europe/Sofia |
| 748 | Simitli | Blagoevgrad Province | 6,729 | Bulgaria | Europe/Sofia |