• Bangkok (special administrative area)

• Samut Prakan Province

• Nonthaburi Province

• Pathum Thani Province

• Phra Nakhon Si Ayutthaya Province

• Ang Thong Province

• Lopburi Province

• Sing Buri Province

• Chai Nat Province

• Saraburi Province

• Chonburi Province

• Rayong Province

• Chanthaburi Province

• Trat Province

• Chachoengsao Province

• Prachin Buri Province

• Nakhon Nayok Province

• Sa Kaeo Province

• Nakhon Ratchasima Province

• Buriram Province

• Surin Province

• Si Sa Ket Province

• Ubon Ratchathani Province

• Yasothon Province

• Chaiyaphum Province

• Amnat Charoen Province

• Nong Bua Lam Phu Province

• Khon Kaen Province

• Udon Thani Province

• Loei Province

• Nong Khai Province

• Maha Sarakham Province

• Roi Et Province

• Kalasin Province

• Sakon Nakhon Province

• Nakhon Phanom Province

• Mukdahan Province

• Chiang Mai Province

• Lamphun Province

• Lampang Province

• Uttaradit Province

• Phrae Province

• Nan Province

• Phayao Province

• Chiang Rai Province

• Mae Hong Son Province

• Nakhon Sawan Province

• Uthai Thani Province

• Kamphaeng Phet Province

• Tak Province

• Sukhothai Province

• Phitsanulok Province

• Phichit Province

• Phetchabun Province

• Ratchaburi Province

• Kanchanaburi Province

• Suphan Buri Province

• Nakhon Pathom Province

• Samut Sakhon Province

• Samut Songkhram Province

• Phetchaburi Province

• Prachuap Khiri Khan Province

• Nakhon Si Thammarat Province

• Krabi Province

• Phang Nga Province

• Phuket Province

• Surat Thani Province

• Ranong Province

• Chumphon Province

• Songkhla Province

• Satun Province

• Trang Province

• Phattalung Province

• Pattani Province

• Yala Province

• Narathiwat Province

• Pattaya Province

• (unassigned)