| ZIP | Locality | Prov | Region | Area Code | Belfiore | Notes | Locality | ZIP |
|---|---|---|---|---|---|---|---|---|
| 03011 | Alatri | FR | Lazio | 0775 | A123 | Alatri FR - Lazio | 03011 | |
| 03011 | Collelavena | FR | Lazio | Frazione of Alatri | Collelavena FR - Lazio Frazione of Alatri | 03011 | ||
| 03011 | Monte San Marino | FR | Lazio | Frazione of Alatri | Monte San Marino FR - Lazio Frazione of Alatri | 03011 | ||
| 03011 | Tecchiena | FR | Lazio | Frazione of Alatri | Tecchiena FR - Lazio Frazione of Alatri | 03011 |