What is .kh?
Why .kh? The letters come from Kampuchea, the Khmer name for Cambodia.
A little context on Cambodia: the capital is Phnom Penh, the main language is Khmer, the currency is the Cambodian riel (KHR) and the international dialing code is +855.
Cambodia shares land borders with 3 countries, so the ccTLDs next door are .la (Laos), .th (Thailand) and .vn (Vietnam).
IANA lists Telecommunication Regulator of Cambodia (TRC) as the manager of .kh, with an address in Cambodia. The registry's website is http://www.trc.gov.kh. ccTLD managers set their own policies — who can register, which second-level names exist, pricing to registrars — so those rules differ from country to country.
On the technical side, .kh is served by 4 authoritative name servers, 1 of them reachable over IPv6. There is no DS record for .kh in the root zone, which means the TLD is not DNSSEC-signed at the top level.
.kh FAQ
What country is .kh?
.kh is the country-code top-level domain for Cambodia, in South-Eastern Asia.
What is Cambodia's domain extension?
Cambodia's website extension is .kh, its country-code top-level domain. The code comes from Kampuchea, the Khmer name for Cambodia.
Who owns the .kh domain?
IANA lists Telecommunication Regulator of Cambodia (TRC) as the manager of .kh: it runs the registry and sets the rules for Cambodia's ccTLD. Individual .kh names belong to whoever registers them.
Can I register a .kh domain from the US?
It depends on Telecommunication Regulator of Cambodia (TRC)'s policy. Some ccTLDs are open to anyone in the world, while others require a local address, company or trademark. Check the registry (http://www.trc.gov.kh) or an accredited registrar before you buy.
Is .kh DNSSEC-signed?
No. As of our last data refresh there is no DS record for .kh in the root zone.
Sources
Data from IANA root zone version 2026102000. Last changed February 26, 2026. Spotted something wrong? Tell us.
