ISO 3166-2:TH is an ISO standard which defines geocodes: it is the subset of ISO 3166-2 which applies to Thailand. It covers the 75 provinces (changwat) and the city of Bangkok, which is both a province and a municipality.
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 the city of Pattaya, which is in the province Chonburi, but other than all other communes it is administrated by a unique City Council.
The numbers used 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.
The Department of Provincial Administration of the Thai Ministry of Interior uses a coding scheme based upon the ISO 3166-2 numbers to encode all the subsequent subdivisions of the provinces as well - two digits for the districts (Amphoe), two further digits of the subdistricts (tambon), and another two digits for the villages (muban). A trailing 00 marks the upper level division. Thus e.g. 20090000 is the code for the Amphoe Sattahip in the province Chonburi.
The municipal (thesaban) areas are also encoded in a similar way like the Amphoe, only starting with 99 and counting down. The code 99 usually encodes the capital of the province, thus 2099 is the town Chonburi.
Codes
See also
- ISO 3166-2, the reference table for all country region codes.
- ISO 3166-1, the reference table for all country codes, as used for domain names on the Internet.
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