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:       34.in-addr.arpa

organisation: Administered by 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:     21691 5 1 c3a3b49c9174fa42ae092d136298cb741e01b2e3
ds-rdata:     21691 5 2 4cd0fac5d9277b5899fc72383b1aedc235b68d0bba40917e15b714daa1494464

whois:        whois.arin.net

changed:      1993-03
changed:      2016-09-14
source:       IANA