Kokkilai Postal Code
| City | Postal Code | District |
|---|---|---|
| Mullivaikkal | 42025 | Mullaitivu |
| Mulliyawalai | 42100 | Mullaitivu |
| Oddusuddan | 42200 | Mullaitivu |
| Muthayankaddakulam | 42210 | Mullaitivu |
| Mankulam | 42300 | Mullaitivu |
| Karipaddamurippu | 42303 | Mullaitivu |
| Vavunikulam | 42305 | Mullaitivu |
| Naddankandal | 42308 | Mullaitivu |
| Yogapuram | 42315 | Mullaitivu |
| Thunukkai | 42320 | Mullaitivu |
| Puthuvedduvan | 42330 | Mullaitivu |
| Kilinochchi | 42400 | Kilinochchi |
| Vaddakachchi | 42405 | Kilinochchi |
| Ramanathapuram | 42408 | Kilinochchi |
| Skandapuram | 42415 | Kilinochchi |