Area Codes in Studena
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 3035 | Studena, Haskovo Province | Haskovo Province | — | Bulgaria | Europe/Sofia |
| 3778 | Studena, Haskovo Province | Haskovo Province | — | Bulgaria | Europe/Sofia |
| 74347 | Razdol | Blagoevgrad Province | — | Bulgaria | Europe/Sofia |
| 7715 | Studena, Haskovo Province | Haskovo Province | — | Bulgaria | Europe/Sofia |
| 7732 | Studena, Haskovo Province | Haskovo Province | — | Bulgaria | Europe/Sofia |
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