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:       4.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:     65123 5 1 460f6802fee91d6c4c621a268746647c5fa68d57
ds-rdata:     65123 5 2 417d753cd70cd6395ffbb56f8c9f6399948cf2165e1c2d81a954c0d3527ee974

whois:        whois.arin.net

changed:      1992-12
changed:      2019-07-24
source:       IANA