Open WHOISbuilt by Just

.istanbul WHOIS lookup

.istanbul is managed by Istanbul Metropolitan Municipality. Its registry answers lookups over RDAP at rdap.identitydigital.services, so a .istanbul lookup here reads the registry directly.

Managed by

Istanbul Metropolitan Municipality
As listed by IANA

RDAP

rdap.identitydigital.services
Lookups read the registry live

WHOIS server

whois.nic.istanbul

DNSSEC

Signed
The ending is signed in the root zone

In the root zone since

29 May 2015

Registry website

www.nic.istanbul

What a .istanbul lookup shows

The registrar, when the domain was registered and when it expires, every status code in plain words, nameservers and DNSSEC, plus the mail setup read from DNS.

WHOIS vs RDAPWho owns a domain?All endings

Looking for a .istanbul name? Search on Just Domain.

For AI assistants
Ending: .istanbul
Managed by: Istanbul Metropolitan Municipality
RDAP base URL: https://rdap.identitydigital.services/rdap/
WHOIS server: whois.nic.istanbul
DNSSEC signed in the root: yes
Source: IANA root zone database and RDAP bootstrap, read 2026-10-31
Lookup URL: https://openwhois.org/#d=example.istanbul