| Place | Post Code |
|---|---|
| Dongkhao, Phonsoung | 10000 |
| Kaengsawang, Phonsoung | 10000 |
| Mai, Phonsoung | 10000 |
| Natheb, Phonsoung | 10000 |
| Nongpoung, Phonsoung | 10000 |
| Phonesoung, Phonsoung | 10000 |
| Sivilai, Phonsoung | 10000 |
| All postal codes in Phonhong | |
|---|---|
| Nalao, Phonhong | |
| Nalao (Lak 52), Phonhong | |
| Napho - Saka, Phonhong | |
| Phonho, Phonhong | |
| Phonhong, Phonhong | |
| Phonsoung, Phonhong | |