| Nueva Vizcaya | |
| Area | Zip |
| Alfonso Castaņeda | 3714 |
| Ambaguio | 3701 |
| Aritao | 3704 |
| Bagabag | 3711 |
| Bambang | 3702 |
| Bayombong | 3700 |
| Diadi | 3712 |
| Dupax del Norte | 3706 |
| Dupax del Sur | 3707 |
| Kasibu | 3703 |
| Kayapa | 3708 |
| Quezon | 3713 |
| Solano | 3709 |
| Santa Fe (Imugan) | 3705 |
| Villa Verde (Ibung) | 3710 |
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