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.
% IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object domain: 75.in-addr.arpa organisation: ARIN nserver: ARIN.AUTHDNS.RIPE.NET. nserver: R.ARIN.NET. nserver: U.ARIN.NET. nserver: X.ARIN.NET. nserver: Y.ARIN.NET. nserver: Z.ARIN.NET. ds-rdata: 42168 5 1 936F2BDA8D1C64BC82456ADA52690D6F758A0166 whois: whois.arin.net changed: 2005-06 changed: 2016-03-22 source: IANA