| Place | Post Code |
|---|---|
| Na Kham Noi, Sivilai | 12000 |
| Na Kham Yai, Sivilai | 12000 |
| Na La Ong, Sivilai | 12000 |
| Pha Hoi Dong, Sivilai | 12000 |
| All postal codes in Xaybuathong | |
|---|---|
| Kaengchon, Xaybuathong | |
| Na-noy, Xaybuathong | |
| Nafao, Xaybuathong | |
| Namkapo, Xaybuathong | |
| Nongthat, Xaybuathong | |
| Phakhong, Xaybuathong | |
| Sivilai, Xaybuathong | |