| Place | Postal Code |
|---|---|
| Hokongbaeng, On-beng | 14000 |
| Hor Kong Nai, On-beng | 14000 |
| Houn Neua, On-beng | 14000 |
| Houn Tai, On-beng | 14000 |
| Laogna, On-beng | 14000 |
| Nambaeng, On-beng | 14000 |
| Nongchoua, On-beng | 14000 |
| On Gnai, On-beng | 14000 |
| Onh Beng, On-beng | 14000 |
| Onnoy, On-beng | 14000 |
| Phouak Gnai, On-beng | 14000 |
| Phouaknoy, On-beng | 14000 |
| Sixieng Mai, On-beng | 14000 |
| Sok, On-beng | 14000 |
| Touklouk, On-beng | 14000 |