| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Kaengyai, Phoxai | 17000 |
| Postal/ZIP Codes in Khanmakhong, Phoxai | 17000 |
| Postal/ZIP Codes in Phangdaeng, Phoxai | 17000 |
| Postal/ZIP Codes in Phork, Phoxai | 17000 |
| Postal/ZIP Codes in Phoxai, Phoxai | 17000 |
| Postal/ZIP Codes in Saisi, Phoxai | 17000 |
| Postal/ZIP Codes in Tuay, Phoxai | 17000 |
| Postal/ZIP Codes in Xai, Phoxai | 17000 |