Area Codes in Gradsko
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 4551 | Gradsko, Bulgaria | Sliven Province | — | Bulgaria | Europe/Sofia |
Nearby Cities
| City | Region | Country | Population | Area Codes | Postal Codes |
|---|---|---|---|---|---|
| Elena, Bulgaria | Veliko Tarnovo Province | Bulgaria | 6,042 | 3701 | — |
| Kermen | Sliven Province | Bulgaria | 2,222 | 4516 | 8870 |
| Shivachevo | Sliven Province | Bulgaria | — | 4593 | 8895 |
| Sliven | Sliven Province | Bulgaria | 96,368 | 44 | 8800, 8801, 8802, 8803 |
| Stevrek | Targovishte Province | Bulgaria | — | 6077 | 7960, 7961, 7963, 7964 |