Thailand (THA)

This section defines the supported geocoding datasets, operations, and input and output field information for Thailand.

Supported Geocoding Datasets

The following table lists the supported geocoding dataset(s) with the available geocoding levels for Thailand.

Note: Custom User Dictionaries are not supported.
Geocoding Dataset City Centroid Suburb/Village Centroid Postal Centroid Street Centroid Interpolated Street Address Point-level Address Point of Interest
TomTom Latin Thai Yes Yes Yes Yes No No No

Supported Operations

The following operations are supported for Thailand:
  • Geocoding—Takes one or more addresses as input and returns latitude/longitude coordinates and other information.
  • Reverse Geocoding—Takes one or more latitude and longitude coordinates as input and returns the address of the location.
  • Interactive Geocoding— Returns potential match candidates as the adddress is typed in.
  • Global Key Lookup—Returns geocode candidates when given a unique key as input. USA MLD and AUS GNAF data only.

Input Fields

The input address may contain some or all of the following address elements.

Parameter Type Description
placeName String Specifies the building name, place name, Point of Interest (POI), company or firm name associated with the input address. Optional.
mainAddress String Single Line Input—If no other address field is populated, then the mainAddress entry will be treated as a single line input. Single line input can consist of multiple input address fields ; these should be entered in the typical address order for the country. For more details, refer to the section "Single Line Input" below.

Street Address—If the post address components (city, postalCode, etc.) are provided separately or in the lastLine field, then the contents of mainAddress will be treated as the street address part and can include company name, house number, building names and street names. Optional.

Street Intersection Input—To enter an intersection, specify the two street names separated by a double ampersand (&&).
lastLine String The last line of the address. Optional. For example:

474 Praditmanutham Rd.
Wangthonglang, Bangkok, 10310
areaName1 String Specifies the province (changwat). Optional.
areaName2 String Not used.
areaName3 String Specifies the subdistrict (tambon).
areaName4 String Not used.
postalCode String Specifies the 5-digit postal code. The first two digits of the postal code indicate the province, the last three digits indicate the district (amphoe).
country String The three-letter ISO 3166-1 Alpha-3 country code. For Thailand, the country code is THA. Required for forward geocoding.

Address Guidelines for Thailand

Follow these suggestions to ensure that your input address data is in the best format possible for optimum matching and geocoding. For additional information on Thailand addresses, see the Thailand Post website: www.thailandpost.com.

  • Required fields—Addresses must contain either a city or a postal code.
  • Thoroughfare types—Thoroughfare types and their common abbreviations are recognized and fully supported on input and output.
  • Common words and abbreviations—The geocoder recognizes common words, directionals, house number indicators, and abbreviations used in addresses and can geocode these addresses successfully.
  • Numbers, numeric equivalents, and ordinals—Numbered streets are mapped to the named equivalents. Ordinals are also recognized in input addresses.

Single Line Input

Instead of entering each address component in separate fields, you can enter the entire address in the mainAddress input field with the address elements ordered as follows:

[address_number][street_info][areaName3][areaName1][postal_code]

Where:
  • [address_number] is optional.
  • [street_info] consists of the street name, street type and any pre- or post-directional information (for example, East, West, etc.). Optional.
  • [areaName3] is the subdistrict (tambon).
  • [areaName1] is the province (changwat).
  • [postal_code] is the postal code.
  • Either [areaName3] or [postal_code] is required.
For best results, put a comma between the street information and the last address line information.

Custom Options

There are no options specific to Thailand.

Output Fields

The following table lists the address fields returned for a candidate located in Thailand.

Note: The placeName, addressNumber, unitType and unitValue field values are only returned when a geocoding dataset that supports street address interpolation is installed.
Field Name Description
mainAddressLine The street address which may include company name, house number, building names and street names.
addressLastLine The last line of the address.
placeName The building name, place name, Point of Interest (POI), company or firm name associated with the address.
areaName1 The province (changwat).
areaName2 Not used.
areaName3 The subdistrict (tambon).
areaName4 Not used.
postCode1 The 5-digit postal code.
postCode2 Not used.
country The three-letter ISO 3166-1 Alpha-3 country code. For Thailand, the country code is THA.
addressNumber The address number.
streetName The street or road name.
unitType The unit type such as APT, STE, etc.
unitValue The unit value/number, such as "3B".
customFields Thailand does not have any custom output fields.