.ntt
.ntt is a brand extension, run by NIPPON TELEGRAPH AND TELEPHONE CORPORATION since 2015. Only NIPPON TELEGRAPH AND TELEPHONE CORPORATION, its affiliates and trademark licensees can register .ntt names; they are not for sale to the public.
| Type | Brand |
|---|---|
| Registry operator | NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
| Who can register | Brand owner only Brand extension: only the registry operator, its affiliates and trademark licensees register names. |
| In the root zone since | 3 February 2015 |
| DNSSEC | Signed |
| RDAP server | https://rdap.nic.ntt/rdap/ |
| WHOIS server | whois.nic.ntt |
| IANA record | iana.org/domains/root/db/ntt |
Look up a .ntt domain
The .ntt registry publishes registration data over RDAP. The free domain report reads it and shows a .ntt domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.
New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.
Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.
Frequently asked questions
Who runs the .ntt extension?
NIPPON TELEGRAPH AND TELEPHONE CORPORATION is the registry operator for .ntt. The registry keeps the list of every .ntt name; registrars sell the names to the public.
Can anyone register a .ntt domain?
Only NIPPON TELEGRAPH AND TELEPHONE CORPORATION, its affiliates and trademark licensees can register .ntt names; they are not for sale to the public.
When was .ntt created?
.ntt was added to the DNS root zone on 3 February 2015, according to IANA.
How do I look up who owns a .ntt domain?
The .ntt registry publishes registration data over RDAP at https://rdap.nic.ntt/rdap/ and over WHOIS at whois.nic.ntt. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .ntt signed with DNSSEC?
Yes. The .ntt zone is signed, so a .ntt domain can turn on DNSSEC once its registrar adds a DS record.