Thailand Area Codes.

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International Phone Accessfor Thailand (66) Area Code for Buriram/Surin (44) + number
Drop the first zero (0) on the Area Code for International Calls.

Amnat Charoen 045
Ang Thong 035
Ayutthaya 035
Bangkok 02
Buri Ram 044
Chantaburi 038
Chonburi 038
Chiang Mai 053
Chiang Rai 053
Chumphon 077
Kalasin 043
Kamphaenghet 055
Kanchanaburi 034
Khon Kaen 043
Krabi 075
Lampang 054
Lampoon 053
Lop Buri 036
Loei 042
Mae Hong Son 053
Maha Sarakham 043
Mukdahan 042
Nakhon Nayok 037
Nakhon Phanom 042
Nakhon Ratchasima 044
Nakhon Sawan 056
Nakhon Si Thammarat 075
Nan 054
Narathiwat 073
Nong Khai 042
Nonthanburi 02
Pang Nga 076
Pattani 034
Payao  054
Phetchaburi 032
Phitsanulok 055
Phrae 054
Phuket 076
Pichit 054
Prachuap Khiri Khan 032
Prachin Buri 037
Ranong 077
Ratchaburi 032
Rayong 038
Roi Et 043
Phetchaburi 032
Sakaew 037
Sakon Nakhon 042
Samut Songkram 034
Saraburi 036
Saturn 074
Singhburi 036
Sisaket 045
Songkhla 074
Sukhothai 055
Suphanburi 035
Surat Thani 077
Surin 044
Tak 055
Trang 075
Trat 039
Uttaradit 055
Uthaithani 056
Ubon Ratchathani 045
Ubon Thani 042
Yala 073
Yasothon 045