The IANA WHOIS Service is provided using the WHOIS protocol on port 43. This web gateway will query this server and return the results. Accepted query arguments are domain names, IP addresses and AS numbers. By submitting any personal data, you acknowledge and agree that the personal data submitted will be processed in accordance with our Privacy Policy, and you agree to abide by the website Terms of Service.
% IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object domain: 37.in-addr.arpa organisation: RIPE NCC nserver: ns3.afrinic.net. nserver: ns3.lacnic.net. nserver: ns4.apnic.net. nserver: pri.authdns.ripe.net. nserver: rirns.arin.net. ds-rdata: 48042 13 2 f983692e4b17fc18fa9bddaa5e592d6f8c67d2f6f51e3bade706e550a80f57d9 whois: whois.ripe.net changed: 2010-11 changed: 2026-03-17 source: IANA