Punanai Postal Code
| City | Postal Code | District |
|---|---|---|
| Mankerni | 30442 | Batticaloa |
| Panichankerni | 30444 | Batticaloa |
| Vakarai | 30450 | Batticaloa |
| Kathiraveli | 30456 | Batticaloa |
| Trincomalee | 31000 | Trincomalee |
| Sampaltivu | 31006 | Trincomalee |
| Nilaveli | 31010 | Trincomalee |
| Kumburupiddy | 31012 | Trincomalee |
| Kuchchaveli | 31014 | Trincomalee |
| Tiriyai | 31016 | Trincomalee |
| Pulmoddai | 31017 | Trincomalee |
| Tennamaravady | 31019 | Trincomalee |
| Gomarankadawala | 31026 | Trincomalee |
| Bakmeegama | 31028 | Trincomalee |
| Kanniya | 31032 | Trincomalee |