.ist WHOIS Lookup
.ist is the city extension for Istanbul, operated by the Istanbul Metropolitan Municipality. Look up a .ist name to see its dates, its registrar and its status codes.
- 1,494 extensions
- IANA 1601 ICANN accredited
- 2 protocols — RDAP and WHOIS
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.ist WHOIS Lookup: Records in a City Extension
.ist entered the root zone on 29 May 2015 as a generic extension created for a city, and the Istanbul Metropolitan Municipality is its registry operator. Despite the local name, .ist is not part of the national .tr family run by TRABIS and follows ICANN's rules for generic extensions. WHOIS queries go to whois.nic.ist on port 43, and an RDAP endpoint is available at rdap.identitydigital.services. The zone is signed with DNSSEC.
A .ist record uses the standard generic layout, with creation, update and expiry dates in UTC, the registrar's name and IANA ID, an abuse email address and phone number, name servers, EPP status codes and a DNSSEC line. No registrant fields are published, and the RDAP reply lists only the registrar role. For Türkiye's national extensions, compare the .tr WHOIS lookup and the .com.tr WHOIS lookup.
About the .ist extension
- Extension
- .ist
- WHOIS server
- whois.nic.ist
- RDAP endpoint
- https://rdap.identitydigital.services/rdap
- Registry operator
- Istanbul Metropolitan Municipality
- In the root zone since
- 29 May 2015
- Type
- Generic extension for a city, under ICANN rules
- RDAP
- rdap.identitydigital.services, registrar role only
- Not published
- Registrant name, organisation and contact details
- Last checked
- 12 August 2026
Looking for whether a name is still free, rather than who holds it? run a domain name search
WHOIS FAQ
Can I find out who owns a .ist domain through WHOIS?
No, the .ist registry publishes no holder name, organisation or contact details in either WHOIS or RDAP. The identity data stays with the registrar that registered the name. Because the reply names that registrar and gives its IANA ID, a request for holder details, for example in a legal dispute, should go to the registrar.
How do I check when a .ist domain expires?
The expiry date is on the Registry Expiry Date line of the WHOIS reply and in the expiration event of the RDAP reply, both in UTC. The whois.com.tr result screen combines it with the creation date to show the domain's age and the time left. As the date draws near, the indicator turns to a warning colour, which makes the renewal window hard to miss.
Does whois.com.tr read .ist data from WHOIS or RDAP?
The whois.com.tr result screen reads .ist records over RDAP, so the dates, registrar, name servers and status codes it shows come from the JSON reply. The port 43 server whois.nic.ist returns the same record as plain text. RDAP keeps every field in a fixed place, which shields the result from changes in the registry's text layout.
Is DNSSEC enabled for .ist domain names?
At zone level it is, because the .ist zone is signed and has a DS record in the root. That does not make every .ist name signed; each domain needs its own DS record as well. Where none has been published, the DNSSEC line of the WHOIS reply reads unsigned and resolvers cannot validate that name.
How do I report abuse involving a .ist domain?
Send the report to the address on the Registrar Abuse Contact Email line, or call the number on the Registrar Abuse Contact Phone line of the WHOIS reply. ICANN's rules for generic extensions require both in every .ist record. A phishing site or spam source on a .ist name therefore always has a published reporting route, and the report reaches the registrar that manages the domain.
What does an available .ist domain look like in a lookup?
An unregistered .ist name returns no registration data, so the reply has no dates, registrar or name server lines. The whois.com.tr result screen reports such a name as available. If the name you want comes back this way, you can register it through any registrar that sells .ist names.