Northeastern region

  1. Kalasin Province
  2. Khon Kaen Province
  3. Chaiyaphum Province
  4. Nakhon Phanom Province
  5. Nakhon Ratchasima Province
  6. Bueng Kan Province
  7. Buriram Province
  8. Maha Sarakham Province
  9. Mukdahan Province
  10. Yasothon Province
  11. Roi Et Province
  12. Loei Province
  13. Sakon Nakhon Province
  14. Surin Province
  15. Sisaket Province
  16. Nong Khai Province
  17. Nong Bua Lamphu Province
  18. Udon Thani Province
  19. Ubon Ratchathani Province
  20. Amnat Charoen Province