_____ _____ Thailand

Global Sourcebook for International Data Management

                                         by Graham Rhind



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Areas of southern Thailand, near the border with Malaysia, are unstable due to the actions of Muslim militants.

For supplementary information, see links to post office home pages here External, to postal code pages here External and to other personal name and addressing issues pages here External.

Table of Contents

Thailand - Country information


Local short name form

Official name



67 933 000 (2019 projection) [1]



International telephone access code


ISO 3166 country codes

Car nationality plate code


Internet country code


GRC Country Code


Thailand - Number format


(where . indicates the decimal separator and , the thousands separator)

Thailand - Date and time formats


   Note: This section last updated 19th June 2021

Thailand uses the Buddhist era date system, 543 years ahead of the Gregorian calendar, so that the Gregorian year 2007 is 2550 in the Thai calendar. The format, used for both the Gregorian and the Thai date systems, is:


The 24-hour clock notation is usually used in written Thai.


Thailand - Languages


The official language is Thai External, spoken by 20-25 000 000 people. 75 other languages are spoken. The most widespread of these are: Min Nan Chinese External (1 081 920 speakers); Northern Khmer External (1 000 000 speakers); Pattani Malay External (2 384 000 speakers); Northeastern Tai External (15-23 000 000 speakers); Northern Tai External (6 000 000 speakers) and Southern Tai External (5 000 000 speakers).

Thailand - For the attention of


This is written Rean or Tung. The latter is not used in a formal letter.

Thailand - Personal names


Family names have only been in use in Thailand since 1915, and most people are normally known as, and addressed by, their given name. The name is usually written in the order:

   given name[ ]surname

Women typically take their husband’s surname upon marriage.

   Tables of names canbe acquired: given names External, surnames/family names External, family name prefixes External, forms of address External, job titles External

Thailand - Company legal forms


When company names are written in English, a common company legal form is PCL (Public Company Limited). Thai legal forms include:

   บริษัทมหาชนจำกัด/ บริษัท
   บริษัทเอกชนจำกัด/ บริษัท
   ห้างหุ้นส่วนจำกัด/ ห้างหุ้นส่วน/ จำกัด
   ห้างหุ้นส่วนสามัญนิติบุคคล/ ห้างหุ้นส่วน
   Comprehensive tables of these strings can be acquired – see http:www.grcdi.nl/addresses.htm External

Thailand - Address format


Addresses should be formatted:

   {Building/block information}
   number[ ]Thoroughfare
   {Village and district names}
   postal code

For example:


The postal code may also be written immediately following the province name.

Addresses are often based on the Thai sub-divisions and are numbered. Provinces (Changwat) are broken down into districts (Khet and Amphoe), broken down into sub-districts (Tambon), broken down into villages (Moo Ban, Ban or Muang) broken down into neighbourhoods (Moo). A soi is a side street branching off of a main street (thanon). They are numbered and include the name of the main street:

   Soi Sukhumvit 4

meaning the 4th side street along Sukhumvit thoroughfare. One side of the street contains even numbered soi, the other side odd numbered. If streets are added, for example between sois 7 and 9 it will become soi 7/1. Buildings are numbered in the same way

Trok is an alley.

In urban areas, street addresses may include more than one street line. In this example:

   14 Soi Ari Samphan
   Phahol Yothin 5

Means house number 14 on Ari Samphan lane, which branches off of the 5th side street off Phahol Yothin road.

   A table containing information about the relevant position of elements within address blocks can be acquired External

Thailand - Post office box


This is written tupo nor.

Thailand - Postal codes


   Note: This section last updated 3rd September 2017

Postal codes, launched in 1992, consist of a block of 5 digits, commencing with a number between 1 and 9. The first two digits of the postal code indicate the province, the last three the post office. A postal code ending in ‘000’ indicates an “important” centre, postal codes ending in ‘0’ indicates a delivery office.

There are currently no codes commencing: 19, 28-29, 59, 68-69, 78-79, 87-89, 97-99.

   Metadata containing postal code formatting rules, exceptions and regular expressions can be acquired External

Thailand - Postal code format graphic


Thailand - Postal code format

Thailand - Postal code specifics

Thailand - Postal code regular expression


Thailand - Postal code level of coverage


Thailand - Postal code map


Map above excludes the new province of Bueng Kan.

Place names in Thailand


   Note: This section last updated 11th December 2015

Refer to Exonyms in Thailand for full lists of place names in Thailand in other languages.

   Alternate place name forms/postal code tables can be acquired at http://www.grcdi.nl/settlements.htm External
   Other language place name data can be acquired at http://www.grcdi.nl/otherlanguageplace.htm External

Thailand - Administrative districts


   Note: This section last updated 3rd September 2017

Thailand has 77 provinces External (changwat). They are used in addesses. They are:

Province First two digits of postal code
Amnat Charoen External 37
Ang Thong External 14
Bueng Kan External (split from Nong Khai on 23rd March 2011) 38
Buriram External 31
Chachoengsao External 24
Chai Nat External 17
Chaiyaphum External 36
Chanthaburi External 22
Chiang Mai External 50
Chiang Rai External 57
Chon Buri External 20
Chumphon External 86
Kalasin External 46
Kamphaeng Phet External 62
Kanchanaburi External 71
Khon Kaen External 40
Krabi External 81
Krung Thep Mahanakhon (Bangkok) External 10 (shared with Samut Prakan)
Lampang External 52
Lamphun External 51
Loei External 42
Lop Buri External 15
Mae Hong Son External 58
Maha Sarakham External 44
Mukdahan External 49
Nakhon Nayok External 26
Nakhon Pathom External 73
Nakhon Phanom External 48
Nakhon Ratchasima External 30
Nakhon Sawan External 60
Nakhon Si Thammarat External 80
Nan External 55
Narathiwat External 96
Nong Bua Lamphu External 39
Nong Khai External 43
Nonthaburi External 11
Pathum Thani External 12
Pattani External 94
Phangnga External 82
Phatthalung External 93
Phayao External 56
Phetchabun External 67
Phetchaburi External 76
Phichit External 66
Phitsanulok External 65
Phra Nakhon Si Ayutthaya External 13
Phrae External 54
Phuket External 83
Prachin Buri External 25
Prachuap Khiri Khan External 77
Ranong External 85
Ratchaburi External 70
Rayong External 21
Roi Et External 45
Sa Kaeo External 27
Sakon Nakhon External 47
Samut Prakan External 10 (shared with Krung Thep Mahanakhon (Bangkok))
Samut Sakhon External 74
Samut Songkhram External 75
Sara Buri External 18
Satun External 91
Sing Buri External 16
Sisaket External 33
Songkhla External 90
Sukhothai External 64
Suphan Buri External 72
Surat Thani External 84
Surin External 32
Tak External 63
Trang External 92
Trat External 23
Ubon Ratchathani External 34
Udon Thani External 41
Uthai Thani External 61
Uttaradit External 53
Yala External 95
Yasothon External 35
   This regions/postal code data can be acquired as a data file External

Administrative districts graphic


Telephone numbers in Thailand


   Note: This section last updated 23rd August 2011

Thai area codes have 2 digits when called from abroad. Fixed line subscriber numbers have 6 digits, mobile subscriber numbers have 7 digits. Mobile numbers have the area codes 80-99.

   Tables of telephone number information/formats can be acquired – see http://www.grcdi.nl/telephone.htm External 


  1. ^ citypopulation.de/en/thailand/prov/admin/ External 20230117

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All information copyright Graham Rhind 2024. Any information used should be acknowledged and referenced.