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    • .ไทย

    Country-code top-level domainsDNSSEC

    Overview

    • .ไทย is the internationalized country-code top-level domain (IDN ccTLD) that represents Thailand in the Thai script.
    • The string means "Thai" in the Thai language and is pronounced the same.
    • ASCII-compatible encoding (ACE) / Punycode: xn--o3cw4h.
    • Unicode code points for the label: U+0E44 U+0E17 U+0E22.
    • Registry / manager: Thai Network Information Center Foundation (THNIC).
    • Official website: https://www.thnic.co.th/

    History

    • January 2009: Public forum in Thailand (ISPs, businesses, government) discussed IDN impact and recommended pursuing an IDN ccTLD.
    • December 2009: Application submitted to the IDN Fast Track process for the string “ไทย”.
    • March 22, 2010: IDN Fast Track DNS Stability Panel review found the applied string and its variants acceptable with low risk to DNS stability and user confusion.
    • April 19, 2010: Thai Network Information Center Foundation presented an application to ICANN for delegation of “ไทย”; the request was approved.
    • Implemented / delegation noted: August 19, 2010.

    Usage and Audience

    • Intended to represent Thailand and provide domain names in the native Thai script for Thai-language users.
    • Typical users and communities:
      • Government agencies and public sector (via .รัฐบาล.ไทย)
      • Educational institutions and providers (via .ศึกษา.ไทย)
      • Commercial enterprises and businesses (via .ธุรกิจ.ไทย)
      • Non-profit organizations (via .องค์กร.ไทย)
      • Military units (via .ทหาร.ไทย)
      • Network service providers (via .เน็ต.ไทย)
    • The second-level labels mirror the structure and purpose of equivalent .th second-level domains (e.g., .co.th → .ธุรกิจ.ไทย).

    Registration Rules

    • General rules and restrictions reference the .th policy; THNIC publishes detailed registration policy for both .th and .ไทย.
    • Name length (when converted to ASCII / ACE): minimum 1 character, maximum 63 characters.
    • Allowed characters:
      • Thai script characters (consonants ก-ฮ, vowels, tone marks)
      • Special Thai characters such as Yomok "ๆ", Pindu "อฺ", Narikahit (อํ), Payal Noi (ฯ), and Karant (_์)
      • Thai numerals ๐-๙
      • Hyphen "-"
      • Combination with Arabic numerals 0-9
    • Second-level namespace examples and intended uses:
      • .ศึกษา.ไทย — education (equivalent to .ac.th)
      • .ธุรกิจ.ไทย — commercial (.co.th)
      • .รัฐบาล.ไทย — government (.go.th)
      • .องค์กร.ไทย — non-profit (.or.th)
      • .ทหาร.ไทย — military (.mi.th)
      • .เน็ต.ไทย — network providers (.net.th)

    Technical Notes

    • The domain follows the IDNA (Internationalizing Domain Names in Applications) framework and is represented in Punycode as xn--o3cw4h.

    Operator

    Thai Network Information Center Foundation

    Whois

    % IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

domain:       ไทย
domain-ace:   XN--O3CW4H

organisation: Thai Network Information Center Foundation
address:      159 Thanon Phichai
address:      Khwaeng Thanon Nakhon Chaisi
address:      Khet Dusit
address:      Bangkok 10300
address:      Thailand

contact:      administrative
name:         Chaya Limchitti
organisation: Thai Network Information Center Foundation
address:      159 Thanon Phichai
address:      Khwaeng Thanon Nakhon Chaisi
address:      Khet Dusit
address:      Bangkok 10300
address:      Thailand
phone:        +66 2 244 8261
fax-no:       +66 2 244 8264
e-mail:       chaya@thnic.or.th

contact:      technical
name:         Pensri Arunwatanamongkol
organisation: Thai Network Information Center Foundation
address:      159 Thanon Phichai
address:      Khwaeng Thanon Nakhon Chaisi
address:      Khet Dusit
address:      Bangkok 10300
address:      Thailand
phone:        +66 2 564 8034
fax-no:       +66 2 564 8033
e-mail:       pensri@thnic.or.th

nserver:      A.THAINS.CO.TH 122.155.23.64 2001:c38:2000:183:0:0:0:30
nserver:      B.THAINS.CO.TH 203.159.64.64 2405:3340:e011:3000:0:0:0:30
nserver:      NN1.THAINS.CO.TH 194.146.106.154 2001:67c:1010:39:0:0:0:53
nserver:      NS.THNIC.NET 202.28.0.1
nserver:      P.THAINS.CO.TH 2001:500:14:6126:ad:0:0:1 204.61.216.126
ds-rdata:     27061 8 2 53856679ac45ea6562ef4ecd2de7aea57d786870979f09c4bc1d5244c2e2a9c9

whois:        whois.thnic.co.th

status:       ACTIVE
remarks:      Registration information: http://www.thnic.co.th

created:      2010-08-19
changed:      2025-01-23
source:       IANA

    Registrars