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.lacnic.net inetnum: 190.0.0.0 - 190.255.255.255 organisation: LACNIC status: ALLOCATED whois: whois.lacnic.net changed: 1995-06 source: IANA ### Registry response (whois.lacnic.net) % IP Client: 2001:41d0:305:2100:0:0:0:5cfe % Joint Whois - whois.lacnic.net % This server accepts single ASN, IPv4 or IPv6 queries % LACNIC resource: whois.lacnic.net % Copyright LACNIC lacnic.net % The data below is provided for information purposes % and to assist persons in obtaining information about or % related to AS and IP numbers registrations % By submitting a whois query, you agree to use this data % only for lawful purposes. % 2026-03-25 23:40:42 (-03 -03:00) inetnum: 190.88.64.0/18 status: allocated aut-num: N/A owner: United Telecommunication Services (UTS) ownerid: CW-UTSU-LACNIC responsible: Edson Rosaria address: Berg Arrarat 1, 2, - address: 00000 - Willemstad - - country: CW phone: +599 997770101 [1867] owner-c: EDR2 tech-c: EDR2 abuse-c: EDR2 inetrev: 190.88.64.0/18 nserver: NS1.ONENET.CW nsstat: 20260324 AA nslastaa: 20260324 nserver: NS2.ONENET.CW nsstat: 20260324 AA nslastaa: 20260324 created: 20090928 changed: 20121211 nic-hdl: EDR2 person: Edson Rosaria e-mail: edson.rosaria@cwc.com address: Berg Arrarat, 1, - address: 00000 - willemstad - country: CW phone: +599 95126888 [0000] created: 20030514 changed: 20240313 % whois.lacnic.net accepts only direct match queries. % Types of queries are: POCs, ownerid, CIDR blocks, IP % and AS numbers.
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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