| Place | Post Code |
|---|---|
| Bang Hieng, Sikhot - Dong-tai | 12000 |
| Done Ma Lai, Sikhot - Dong-tai | 12000 |
| Done Thong, Sikhot - Dong-tai | 12000 |
| Done Yai, Sikhot - Dong-tai | 12000 |
| Dong Sork, Sikhot - Dong-tai | 12000 |
| Dong Tai, Sikhot - Dong-tai | 12000 |
| Mouang Soum, Sikhot - Dong-tai | 12000 |
| Na Dine Chi, Sikhot - Dong-tai | 12000 |
| Na Hare, Sikhot - Dong-tai | 12000 |
| Na Kang, Sikhot - Dong-tai | 12000 |
| Na Pho Tha, Sikhot - Dong-tai | 12000 |
| Non Toum, Sikhot - Dong-tai | 12000 |
| Nong Hang, Sikhot - Dong-tai | 12000 |
| Nong Phuue, Sikhot - Dong-tai | 12000 |
| Pak Peng, Sikhot - Dong-tai | 12000 |
| Phone Xai, Sikhot - Dong-tai | 12000 |
| Si Khot, Sikhot - Dong-tai | 12000 |
| Tha Hare, Sikhot - Dong-tai | 12000 |
| Tha Ngam, Sikhot - Dong-tai | 12000 |
| Yang Ngam, Sikhot - Dong-tai | 12000 |