Nanattan Postal Code
| City | Postal Code | District |
|---|---|---|
| P. P. Potkerny | 41045 | Mannar |
| Marichchikaddi | 41055 | Mannar |
| Arippu | 41060 | Mannar |
| Vankalai | 41100 | Mannar |
| Uylankulam | 41110 | Mannar |
| Thruketheeswaram Kovil | 41120 | Mannar |
| Chilavathurai | 41140 | Mannar |
| Vaddakandal | 41150 | Mannar |
| Adampan | 41160 | Mannar |
| Vidaththaltivu | 41165 | Mannar |
| Periyamadu | 41170 | Mannar |
| Iluppaikadavai | 41175 | Mannar |
| Aththimottai | 41180 | Mannar |
| Vellankulam | 41185 | Mannar |
| Tharapuram | 41190 | Mannar |