| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Houayphai, Phakkha | 13000 |
| Postal/ZIP Codes in Napho, Phakkha | 13000 |
| Postal/ZIP Codes in None-Oudom, Phakkha | 13000 |
| Postal/ZIP Codes in Phakkha Gnai, Phakkha | 13000 |
| Postal/ZIP Codes in Phakkha Noy, Phakkha | 13000 |
| Postal/ZIP Codes in Sompoy, Phakkha | 13000 |