WHOIS
Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.
### IANA response (whois.iana.org) % IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object refer: whois.ripe.net inetnum: 83.0.0.0 - 83.255.255.255 organisation: RIPE NCC status: ALLOCATED whois: whois.ripe.net changed: 2003-11 source: IANA ### Registry response (whois.ripe.net) % This is the RIPE Database query service. % The objects are in RPSL format. % % The RIPE Database is subject to Terms and Conditions. % See https://docs.db.ripe.net/terms-conditions.html % Note: this output has been filtered. % To receive output for a database update, use the "-B" flag. % Information related to '83.69.192.0 - 83.69.223.255' % Abuse contact for '83.69.192.0 - 83.69.223.255' is 'noc@mastertel.ru' inetnum: 83.69.192.0 - 83.69.223.255 netname: RU-MASTERTEL-20040602 country: RU org: ORG-JM2-RIPE admin-c: MTEL1-RIPE tech-c: MTEL1-RIPE status: ALLOCATED PA mnt-by: RIPE-NCC-HM-MNT mnt-by: MASTERTEL-MNT mnt-routes: MASTERTEL-MNT mnt-domains: MASTERTEL-MNT created: 2004-06-02T12:39:20Z last-modified: 2016-10-03T12:18:33Z source: RIPE # Filtered organisation: ORG-JM2-RIPE org-name: JSC Mastertel country: RU reg-nr: 1027710006653 org-type: LIR address: office 15, building 3A, Stroitelnaya street address: 143405 address: Krasnogorsk, Krasnogorsk district, Moscow region address: RUSSIAN FEDERATION phone: +7 495 787 0777 fax-no: +7 495 787 0788 abuse-c: AR16779-RIPE admin-c: AS28826-RIPE mnt-ref: MASTERTEL-MNT mnt-ref: RIPE-NCC-HM-MNT mnt-by: RIPE-NCC-HM-MNT mnt-by: MASTERTEL-MNT created: 2004-04-17T11:54:57Z last-modified: 2026-05-13T07:30:08Z source: RIPE # Filtered role: Mastertel Admins address: Mastertel CJSC address: 89 Krasnobogatyrskaya st. address: Moscow Russia phone: +7 495 787 0777 fax-no: +7 495 787 0788 remarks: ======================================================= remarks: Mastertel NOC contacts: remarks: ------------------------------------------------------- remarks: NOC engineers available 24x7 remarks: ------------------------------------------------------- remarks: Routing issues: noc@mastertel.ru remarks: Peering issues: peering@mastertel.ru remarks: Abuse and security issues: abuse@mastertel.ru remarks: Mail issues: postmaster@mastertel.ru remarks: Customer support: support@mastertel.ru remarks: VoIP issues: voice@mastertel.ru remarks: ======================================================= admin-c: AS28826-RIPE tech-c: AS28826-RIPE tech-c: DG15583-RIPE tech-c: KL4372-RIPE nic-hdl: MTEL1-RIPE mnt-by: MASTERTEL-MNT created: 2003-03-17T10:47:40Z last-modified: 2024-07-24T11:48:13Z source: RIPE # Filtered % Information related to '83.69.192.0/19AS29226' route: 83.69.192.0/19 descr: Mastertel ISP origin: AS29226 mnt-by: MASTERTEL-MNT created: 2004-06-02T12:52:55Z last-modified: 2009-11-19T11:35:31Z source: RIPE # Filtered % This query was served by the RIPE Database Query Service version 1.123 (BUSA)
Frequently Asked Questions
What is WHOIS?
WHOIS is a protocol that queries databases to find the registered owner of a domain name or IP address. It reveals the registrar, registration dates, nameservers, and contact information associated with a domain or IP block.
Is WHOIS data always accurate?
Not always. Many domain registrars offer WHOIS privacy protection that replaces the registrant's personal details with proxy information. IP WHOIS data from Regional Internet Registries (RIRs) is generally more reliable than domain WHOIS data.
Can I use WHOIS to find who owns an IP address?
Yes. Enter any IP address into the WHOIS tool to find the organization that owns the IP block, the Regional Internet Registry (ARIN, RIPE, APNIC, etc.) that allocated it, and the network range it belongs to.
What is the difference between domain WHOIS and IP WHOIS?
Domain WHOIS shows registration details like the registrar, creation date, expiry date, and nameservers. IP WHOIS shows the network allocation, the organization that owns the IP block, and the abuse contact for reporting issues.
Why does WHOIS show privacy protection instead of real details?
Domain registrars offer WHOIS privacy services to protect registrants from spam, identity theft, and unwanted contact. GDPR regulations in Europe also require redaction of personal data from WHOIS records.
How often is WHOIS data updated?
WHOIS data is updated by the registrar or registry whenever changes are made to a domain or IP registration. Our tool queries the authoritative WHOIS server in real-time, with results cached for 7 days to reduce server load.
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