Thailand’s Country Codes
- Telephone: +66
- 2 Letter: TH
- 3 Letter: THA
- ISO 3116-1 Numeric: 764
- ISO 3116-2: TH
- Internet TLD: .th
- ICAO Airport Code: VT
- Maritime Identification Digits: 567
- Emoji Flag: U+1F1F9 U+1F1ED
- Official Name: The Kingdom of Thailand
How to call Thailand (international dialing)
- Do not include a leading ‘0’ in the international call sequence – it is only used in Thailand for domestic long distance calls.
- A leading '+' in the phone number means 'dial your country's exit code'.
- Calling from a mobile phone: dial from on the country where you're currently located.
- Calling from a VoIP or satellite phone: dial from on the country where the phone is registered.
Thailand’s country code may be mislabeled:
- Country code 0066 (exit code of ’00’ used in many European, Asian, and African nations followed by Thailand’s country code of ’66’).
- Country code 01166 (exit code of ‘011’ used in the United States and Canada followed by Thailand’s country code of ’66’).
- Country code country code 662(Thailand’s country code of ’66’ followed by Bangkok’s area code of ‘2’) (may also be listed as country code 00662 / country code 011662 )
When calling to a mislabeled country code, remove the exit code from the call sequence and replace it with the exit code of the country the call is dialed from.
… to a mobile (cellular) phone
Use the same call sequence.
Thai mobile phone numbers begin with ’08’ or ’09’. Exclude the leading ‘0’ from the international call sequence
Calling to a mobile phone that is registered in Thailand but roaming outside of Thailand: dial the regular call sequence to a Thai mobile phone.
Calling to a mobile phone user currently roaming in Thailand with a phone that is registered outside of Thailand: call the country where the mobile phone is registered.
… to a VoIP phone
Dial VoIP phone numbers based in Thailand with the same call sequence as a regular landline phone.
Phone numbers starting with ’06’ (or ‘6’ when dialed in an international call sequence) are designated as VoIP.
Calling to a VoIP phone registered in Thailand with the user roaming outside of Thailand: dial the regular call sequence to a Thai VoIP phone.
Calling to a VoIP phone user currently roaming in Thailand with a phone that is registered outside of Thailand: call the country where the VoIP phone is registered.
… to a satellite phone
Thailand does not have a country-specific satellite phone system.
Most satellite phones operate on their country code – calls to these satellite phones follow their call sequence.
… sending a fax
Use the same call sequence.
How to call within Thailand (domestic dialing)
‘0’ is used as a trunk prefix when calling within Thailand.
Dial all digits, including the trunk prefix ‘0’ and the area code when calling within Thailand.
Local calling
Local calls are made with all digits in the phone number, including the trunk prefix ‘0’ and the area code.
| 0 | one to two digits | six to seven |
| trunk prefix | local area code | local phone number |
Long distance calling
Long distance calls are made with all digits in the phone number, including the trunk prefix ‘0’ and the area code.
| 0 | one to two digits | six to seven |
| trunk prefix | local area code | local phone number |
Thai phone numbers explained
Number details
Thai phone numbers are eight digits. The first one to two digits represents an area (geographic) code. The only one digit area code is ‘2’ (Bangkok and surrounding area).
Mobile numbers begin with ‘8’ or ‘9’.
VoIP numbers begin with ‘6’.
An example of a Thai phone number
The Bangkok Art & Culture Center lists its phone number in Bangkok as 02 214 6630-8.
Number structure
| 66 | 2 | 214 6630 8 |
| country code for Thailand | geographic (area) code for Bangkok and surrounding areas | remaining phone number within Bangkok |
Local example – calling within the same area code
Include the trunk prefix ‘0’ and the local area code when calling locally (even within when calling within the same area code).
| 0 | 2 | 214 6630 8 |
| trunk prefix | geographic (area) code for Bangkok and surrounding areas | remaining phone number within Bangkok |
Long distance example – calling from Phuket, Thailand (on the other side of the country)
Include the trunk prefix ‘0’ and the local area code when calling long distance.
| 0 | 2 | 214 6630 8 |
| trunk prefix | geographic (area) code for Bangkok and surrounding areas | remaining phone number within Bangkok |
International example – calling from outside Thailand
Dial the exit code of the country the call is dialed from, followed by Thailand’s country code of ’66’, followed by the destination area code and local phone number.
| exit code | 66 | 2 | 214 6630 8 |
| exit code of the country the call is dialed from | country code for Thailand | geographic (area) code for Bangkok and surrounding areas | remaining phone number within Bangkok |
Area codes
| Bangkok | 2 |
| Chaophraya Surasak | 38 |
| Chiang Mai | 52, 53 |
| Hat Yai | 74 |
| Khon Kaen | 43 |
| Mobile | 8x, 9x |
| Nakhon Pathom | 34 |
| Nakhon Ratchasima | 44 |
| Nakhon Sawan | 56 |
| Nakhon Si Thammarat | 75 |
| Nonthaburi | 2 |
| Pak Kret | 2 |
| Pattaya | 38 |
| Phitsanulok | 55 |
| Ubon Ratchathani | 45 |
| Udon Thani | 42 |
| VoIP | 6x |
Special numbers
| Toll-free (freephone) | 1800 |
| Premium rate | 1900 |
Toll-free phone numbers do not incur a cost when dialed domestically. They do not incur a charge to the caller when called from a land-line (fixed line) phone.
Premium rate calls are billed at a rate higher than normal.
Toll-free and premium rate numbers may or may not be available from outside of Thailand. There is no trunk prefix ‘0’ dialed in the call sequence to reach them.
How to call from Thailand
‘001’ is used as an exit code when dialing an international phone call from Thailand.
Phone books, directories, and number lookup
- TOT Phone book – Phone book from TOT, one of Thailand’s phone providers.
- Thailand Yellow Pages – Business directory covering Thailand provided by Teleinfo Media.
Sources and more resources
- National Broadcasting and Telecommunications Commission (NBTC) – Primary regulator for Thai telecommunications networks.
- APT (Asia-Pacific Telecommunity) – Intergovernmental organization that works with government, manufacturing, and research & development in the telecommunications industry.
- ITU (International Telecommunications Union) – United Nations specalized agency for information and communications technologies.
- International Telecommunications Union – DIALLING PROCEDURES (INTERNATIONAL PREFIX, NATIONAL (TRUNK) PREFIX AND NATIONAL (SIGNIFICANT) NUMBER) (IN ACCORDANCE WITH ITU-T RECOMMENDATION E.164 (11/2010)) – A collection of dialing procedures for all countries and regions of the world. Retrieved 8 October 2016.
- International Telecommunications Union – Thailand (country code +66) Communication of 11.VII.2018 – Details of Indonesia’s telephone numbering plan as submitted to the ITU. Retrieved 9 March 2020.
- Wikipedia – Telephone numbers in Thailand – Wikipedia entry for telephone number data for Thailand. Includes specific number ranges for each province as well as detail on calling procedures.