The ISO 3166-2 codes for Thailand describe 76 provinces (changwat). The first part of the code is the ISO 3166-1 country code TH for Thailand, the second part is two-digit-numeric (with trailing zeros). A special non-numeric code is used for Phatthaya. The purpose of this family of standards is to establish a worldwide series of short abbreviations for places, for use on package labels, containers and such. Anywhere where a short alphanumeric code can serve to clearly indicate a location in a more convenient and less ambiguous form than the full place name. US readers may wish to consider them as the equivalent of worldwide zip or postal codes. Within the Wikipedia, the codes from the country pages link to the pages for the locations they identify.
The numbers are the same as the postal code for the province, except in the number range 11-19, where one have to subtract 1 to get the postal code from the ISO code. The number codes did change significantly between the first drafts of the ISO 3166-2 standard in 1988 and the first published version of 1993, including three new provinces which were created in the meantime.
The US standard FIPS 10-4 also includes designators for the provinces which use the same style (TH-xx), but the numbers are incompatible with the ISO standard. Thus the decoding table below does not apply to the FIPS codes. In fact the draft of the ISO 3166-2 was based upon the FIPS codes.
Decoding table
TH-10 Bangkok
TH-11 Samut Prakan
TH-12 Nonthaburi
TH-13 Pathum Thani
TH-14 Phra Nakhon Si Ayutthaya
TH-15 Ang Thong
TH-16 Lop Buri
TH-17 Sing Buri
TH-18 Chai Nat
TH-19 Saraburi
TH-20 Chon Buri
TH-21 Rayong
TH-22 Chanthaburi
TH-23 Trat
TH-24 Chachoengsao
TH-25 Prachin Buri
TH-26 Nakhon Nayok
TH-27 Sa Kaeo
TH-30 Nakhon Ratchasima
TH-31 Buri Ram
TH-32 Surin
TH-33 Si Sa Ket
TH-34 Ubon Ratchathani
TH-35 Yasothon
TH-36 Chaiyaphum
TH-37 Amnat Charoen
TH-39 Nong Bua Lam Phu
TH-40 Khon Kaen
TH-41 Udon Thani
TH-42 Loei
TH-43 Nong Khai
TH-44 Maha Sarakham
TH-45 Roi Et
TH-46 Kalasin
TH-47 Sakon Nakhon
TH-48 Nakhon Phanom
TH-49 Mukdahan
TH-50 Chiang Mai
TH-51 Lamphun
TH-52 Lampang
TH-53 Uttaradit
TH-54 Phrae
TH-55 Nan
TH-56 Phayao
TH-57 Chiang Rai
TH-58 Mae Hong Son
TH-60 Nakhon Sawan
TH-61 Uthai Thani
TH-62 Kamphaeng Phet
TH-63 Tak
TH-64 Sukhothai
TH-65 Phitsanulok
TH-66 Phichit
TH-70 Ratchaburi
TH-71 Kanchanaburi
TH-72 Suphanburi
TH-73 Nakhon Pathom
TH-74 Samut Sakhon
TH-75 Samut Songkhram
TH-76 Phetchabun
TH-76 Phetchaburi
TH-77 Prachuap Khiri Khan
TH-80 Nakhon Si Thammarat
TH-81 Krabi
TH-82 Phang Nga
TH-83 Phuket
TH-84 Surat Thani
TH-85 Ranong
TH-86 Chumpon
TH-90 Songkhla
TH-91 Satun
TH-92 Trang
TH-93 Phattalung
TH-94 Pattani
TH-95 Yala
TH-96 Narathiwat
TH-S Pattaya
See also
