| ZIP | Locality | Prov | Region | Area Code | Belfiore | Notes | Locality | area code |
|---|---|---|---|---|---|---|---|---|
| 58022 | Follonica | GR | Tuscany | 0566 | D656 | Follonica GR - Tuscany | 0566 | |
| 58023 | Gavorrano | GR | Tuscany | 0566 | D948 | Gavorrano GR - Tuscany | 0566 | |
| 58024 | Massa Marittima | GR | Tuscany | 0566 | F032 | Massa Marittima GR - Tuscany | 0566 | |
| 58025 | Monterotondo Marittimo | GR | Tuscany | 0566 | F612 | Monterotondo Marittimo GR - Tuscany | 0566 | |
| 58026 | Montieri | GR | Tuscany | 0566 | F677 | Montieri GR - Tuscany | 0566 | |
| 58020 | Scarlino | GR | Tuscany | 0566 | I510 | Scarlino GR - Tuscany | 0566 |