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.arin.net inetnum: 156.0.0.0 - 156.255.255.255 organisation: Administered by ARIN status: LEGACY whois: whois.arin.net changed: 1993-05 source: IANA ### Registry response (whois.arin.net) # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. # # # Query terms are ambiguous. The query is assumed to be: # "n 156.146.217.26" # # Use "?" to get help. # NetRange: 156.146.128.0 - 156.146.255.255 CIDR: 156.146.128.0/17 NetName: UECS-3 NetHandle: NET-156-146-128-0-1 Parent: NET156 (NET-156-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: United Cooperative Services (UECS-3) RegDate: 2020-04-08 Updated: 2020-04-08 Ref: https://rdap.arin.net/registry/ip/156.146.128.0 OrgName: United Cooperative Services OrgId: UECS-3 Address: 3309 N. Main City: Cleburne StateProv: TX PostalCode: 76033 Country: US RegDate: 2019-12-20 Updated: 2026-01-15 Comment: www.ucs.net/internet Ref: https://rdap.arin.net/registry/entity/UECS-3 OrgDNSHandle: CAGLE19-ARIN OrgDNSName: CAGLE, ERIC OrgDNSPhone: +1-254-918-6109 OrgDNSEmail: eric@ucs.net OrgDNSRef: https://rdap.arin.net/registry/entity/CAGLE19-ARIN OrgRoutingHandle: CAGLE19-ARIN OrgRoutingName: CAGLE, ERIC OrgRoutingPhone: +1-254-918-6109 OrgRoutingEmail: eric@ucs.net OrgRoutingRef: https://rdap.arin.net/registry/entity/CAGLE19-ARIN OrgTechHandle: NOC33493-ARIN OrgTechName: NOC OrgTechPhone: +1-817-783-9292 OrgTechEmail: noc@ucs.net OrgTechRef: https://rdap.arin.net/registry/entity/NOC33493-ARIN OrgDNSHandle: NOC33493-ARIN OrgDNSName: NOC OrgDNSPhone: +1-817-783-9292 OrgDNSEmail: noc@ucs.net OrgDNSRef: https://rdap.arin.net/registry/entity/NOC33493-ARIN OrgNOCHandle: CAGLE19-ARIN OrgNOCName: CAGLE, ERIC OrgNOCPhone: +1-254-918-6109 OrgNOCEmail: eric@ucs.net OrgNOCRef: https://rdap.arin.net/registry/entity/CAGLE19-ARIN OrgNOCHandle: NOC33493-ARIN OrgNOCName: NOC OrgNOCPhone: +1-817-783-9292 OrgNOCEmail: noc@ucs.net OrgNOCRef: https://rdap.arin.net/registry/entity/NOC33493-ARIN OrgTechHandle: CAGLE19-ARIN OrgTechName: CAGLE, ERIC OrgTechPhone: +1-254-918-6109 OrgTechEmail: eric@ucs.net OrgTechRef: https://rdap.arin.net/registry/entity/CAGLE19-ARIN OrgRoutingHandle: NOC33493-ARIN OrgRoutingName: NOC OrgRoutingPhone: +1-817-783-9292 OrgRoutingEmail: noc@ucs.net OrgRoutingRef: https://rdap.arin.net/registry/entity/NOC33493-ARIN OrgAbuseHandle: NOC33493-ARIN OrgAbuseName: NOC OrgAbusePhone: +1-817-783-9292 OrgAbuseEmail: noc@ucs.net OrgAbuseRef: https://rdap.arin.net/registry/entity/NOC33493-ARIN # # ARIN WHOIS data and services are subject to the Terms of Use # available at: https://www.arin.net/resources/registry/whois/tou/ # # If you see inaccuracies in the results, please report at # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/ # # Copyright 1997-2026, American Registry for Internet Numbers, Ltd. #
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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