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:       121.in-addr.arpa

organisation: APNIC

nserver:      apnic.authdns.ripe.net.
nserver:      apnic1.dnsnode.net.
nserver:      ns2.apnic.net.
nserver:      ns3.lacnic.net.
nserver:      tinnie.arin.net.
ds-rdata:     908 5 1 acc8861ba1bae27253e0c26f3bbb0eb670435c2f
ds-rdata:     908 5 2 cca3ce75eeb80adda17946fda25f8db24617ebdb6e7df1aa3f7ef18a18182116

whois:        whois.apnic.net

changed:      2006-01
changed:      2018-08-28
source:       IANA