General
- Extension
- .istanbul
- Type
- Regional extension
- Meaning
- Istanbul (Turkey)
- Registry
- Istanbul Metropolitan Municipality
- Registry website
- www.nic.istanbul
- Registered since
- 29 May 2015
- ICANN agreement
- since 28 August 2014
Properties
- DNSSEC signed
- yes
- Name servers
- 4 (4 with IPv6)
- WHOIS server
- whois.nic.istanbul
- RDAP server
- rdap.identitydigital.services/rdap
- At 1blu
- available to order directly
Registration conditions
- Who may register?
- In principle anyone, unless the registry sets additional conditions (e.g. for industry, regional or brand extensions).
- Term
- 1 to 10 years per registration or renewal (ICANN Registry Agreement).
- Transfer
- With an auth code (auth info) under the ICANN Transfer Policy. A lock period applies after a new registration or transfer.
- After expiry
- Restore possible during the Redemption Grace Period (ICANN rules).
- Disputes
- ICANN Uniform Domain-Name Dispute-Resolution Policy (UDRP).
You will find additional conditions of the .istanbul registry on its website: www.nic.istanbul.
Sources: ICANN Transfer Policy · ICANN UDRP · Registry Istanbul Metropolitan Municipality · IANA Root Zone Database: .istanbul · As of 25 October 2026