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:       3.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:     39073 5 1 c69a2abf748da7407630bf0a0d2b9102cda14f65
ds-rdata:     39073 5 2 9f7674a57f6ea413c65d309c244b8fb56d980eb0cf12fdb85ceb609d01dd6ce2

whois:        whois.arin.net

changed:      1994-05
changed:      2018-01-03
source:       IANA