| Place | Post Code |
|---|---|
| Dong, Phonxai | 07000 |
| Gnot-Ath, Phonxai | 07000 |
| Homxai, Phonxai | 07000 |
| Houayhay, Phonxai | 07000 |
| Naleng, Phonxai | 07000 |
| Nameua, Phonxai | 07000 |
| Pakha, Phonxai | 07000 |
| Pakha Neua, Phonxai | 07000 |
| Pakha Tai, Phonxai | 07000 |
| Phonkhang, Phonxai | 07000 |
| Sadoung, Phonxai | 07000 |