| ZIP | Locality | Prov | Region | Area Code | Belfiore | Notes | Locality | ZIP |
|---|---|---|---|---|---|---|---|---|
| 28016 | Orta San Giulio | NO | Piedmont | 0322 | G134 | Orta San Giulio NO - Piedmont | 28016 | |
| 28016 | Isola San Giulio | NO | Piedmont | 0322 | Frazione of Orta San Giulio | Isola San Giulio NO - Piedmont Frazione of Orta San Giulio | 28016 | |
| 28016 | Orta Novarese | NO | Piedmont | 0322 | Frazione of Orta San Giulio | Orta Novarese NO - Piedmont Frazione of Orta San Giulio | 28016 |