About .int domains

About .int domains

.INT is a top-level domain delegated in the IANA root zone. See the official IANA delegation record for manager and technical contacts.

The domain name int is a sponsored top-level domain (sTLD) in the Domain Name System of the Internet. Its name is derived from the word international, characterizing its use for international organizations and treaty-related purposes. The first use of this domain was by NATO, which had previously been assigned the top-level domain .nato. According to Internet Assigned Numbers Authority (IANA) policy, based on RFC 1591, the sTLD int is reserved for international treaty-based organizations, United Nations agencies, and organizations or entities having observer status at the UN. int is considered to have the strictest application policies of all TLDs, as it implies that the holder is a subject of international law. For this reason, the application procedure requires the applicant to provide evidence that it is indeed treaty-based by providing a United Nations treaty registration number and that it has independent legal status. Previously, it also was open to Internet infrastructure services; those services have since been required to register in .arpa.

Who can register .int domains?

Eligibility is defined by the registry operator and its registrars. Most gTLDs are open to anyone worldwide. Many ccTLDs are also open globally; some require local presence, citizenship, or trademark rights. Always confirm current policy with the registry or your registrar.

Registration restrictions

Character rules below follow common ICANN LDH conventions. Individual registries and registrars may impose extra eligibility, length, or residency rules.

Length

2 – 63 characters (label before .int)

Can use

Letters (a–z), numbers (0–9), and hyphens (not first/last or consecutive in restricted cases)

Cannot use

Special characters (e.g. & # @) in standard LDH labels

IDNs

Varies by registry — check IDN support with the registry or your registrar

Features

Operational features (privacy, parking, protection) are registrar-level, not defined by the IANA root zone record.

Registry information

Sponsor / manager

Internet Assigned Numbers Authority

Registration services

https://www.iana.org/domains/int

WHOIS server

whois.iana.org

RDAP server

https://rdap.iana.org/

Root zone registration

1988-11-03

Record last updated

2026-03-10