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.apnic.net inetnum: 203.0.0.0 - 203.255.255.255 organisation: APNIC status: ALLOCATED remarks: 203.0.113.0/24 reserved for TEST-NET-3 [RFC5737]. remarks: Complete registration details for 203.0.113.0/24 are remarks: found iniana-ipv4-special-registry. whois: whois.apnic.net changed: 1993-05 source: IANA ### Registry response (whois.apnic.net) % [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '203.119.8.0 - 203.119.11.255' % Abuse contact for '203.119.8.0 - 203.119.11.255' is 'hm-changed@vnnic.vn' inetnum: 203.119.8.0 - 203.119.11.255 netname: VNNIC-NET descr: Vietnam Internet network information center (VNNIC) descr: 18 Nguyen Du street, Hai Ba Trung District, Hanoi country: VN admin-c: VI2-AP tech-c: VI2-AP status: ASSIGNED PORTABLE remarks: send abuse report to NTTT1-AP remarks: ----------------------------------------------- remarks: This object can only be modified by APNIC hostmaster remarks: If you wish to modify this object details please remarks: send email to hostmaster@apnic.net with your organisation remarks: account name in the subject line. remarks: ------------------------------------------------- mnt-by: APNIC-HM mnt-routes: MAINT-VN-VNNIC mnt-irt: IRT-VNNIC-AP mnt-irt: IRT-VNNIC-AP last-modified: 2015-08-11T06:53:37Z source: APNIC irt: IRT-VNNIC-AP address: Ha Noi, VietNam phone: +84-24-35564944 fax-no: +84-24-37821462 e-mail: hm-changed@vnnic.vn abuse-mailbox: hm-changed@vnnic.vn admin-c: NTTT1-AP tech-c: NTTT1-AP auth: # Filtered mnt-by: MAINT-VN-VNNIC last-modified: 2025-11-17T23:08:34Z source: APNIC role: VNNIC IPHOSTMASTER address: Vietnam Internet Network Information center address: 18 Nguyen Du str, Hai Ba Trung Dist, Ha Noi country: VN phone: +844 35564944 fax-no: +844 37821462 e-mail: hm-changed@vnnic.vn remarks: http://www.vnnic.vn admin-c: NTTT1-AP tech-c: NTO1-AP nic-hdl: VI2-AP mnt-by: MAINT-VN-VNNIC last-modified: 2017-06-09T08:22:55Z source: APNIC % Information related to '203.119.8.0/24AS23902' route: 203.119.8.0/24 descr: VNNIC-VN origin: AS23902 mnt-by: MAINT-VN-VNNIC last-modified: 2021-12-23T10:43:40Z source: APNIC % This query was served by the APNIC Whois Service version 1.88.34 (WHOIS-UK2)
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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