| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Namchang, Thetsaban | 03000 |
| Postal/ZIP Codes in Oudomsin, Thetsaban | 03000 |
| Postal/ZIP Codes in Phonxai, Thetsaban | 03000 |
| Postal/ZIP Codes in Viengngeun, Thetsaban | 03000 |
| Postal/ZIP Codes in Xaisomboune, Thetsaban | 03000 |