Area Codes in Lazio
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 6 | Rome | Lazio | 2,318,895 | Italy | Europe/Rome |
| 746 | Rieti | Lazio | 39,068 | Italy | Europe/Rome |
| 761 | Viterbo | Lazio | 47,134 | Italy | Europe/Rome |
| 765 | Poggio Mirteto | Lazio | 3,343 | Italy | Europe/Rome |
| 766 | Civitavecchia | Lazio | 47,543 | Italy | Europe/Rome |
| 771 | Formia | Lazio | 28,521 | Italy | Europe/Rome |
| 773 | Latina, Lazio | Lazio | 76,305 | Italy | Europe/Rome |
| 774 | Tivoli, Lazio | Lazio | 22,018 | Italy | Europe/Rome |
| 775 | Frosinone | Lazio | 44,505 | Italy | Europe/Rome |
| 776 | Cassino | Lazio | 21,074 | Italy | Europe/Rome |