| ZIP | Locality | Prov | Region | Area Code | Belfiore | Notes | Locality | area code |
|---|---|---|---|---|---|---|---|---|
| 01011 | Canino | VT | Lazio | 0761 | B604 | Canino VT - Lazio | 0761 | |
| 01010 | Capodimonte | VT | Lazio | 0761 | B663 | Capodimonte VT - Lazio | 0761 | |
| 01012 | Capranica | VT | Lazio | 0761 | B688 | Capranica VT - Lazio | 0761 | |
| 01032 | Caprarola | VT | Lazio | 0761 | B691 | Caprarola VT - Lazio | 0761 | |
| 01030 | Carbognano | VT | Lazio | 0761 | B735 | Carbognano VT - Lazio | 0761 | |
| 01030 | Castel Sant'Elia | VT | Lazio | 0761 | C269 | Castel Sant'Elia VT - Lazio | 0761 | |
| 01024 | Castiglione in Teverina | VT | Lazio | 0761 | C315 | Castiglione in Teverina VT - Lazio | 0761 | |
| 01020 | Celleno | VT | Lazio | 0761 | C446 | Celleno VT - Lazio | 0761 | |
| 01010 | Cellere | VT | Lazio | 0761 | C447 | Cellere VT - Lazio | 0761 | |
| 01033 | Civita Castellana | VT | Lazio | 0761 | C765 | Civita Castellana VT - Lazio | 0761 |