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:     8111 5 1 98e352a8d3d3de4f0108f229f0ab3f6f182ad73d
ds-rdata:     8111 5 2 04e1783c0a853841e4e3bdd705b28f2e5919b0e2ceb687ddab8c6a1c59c4c2b1

whois:        whois.arin.net

changed:      1992-12
changed:      2020-10-07
source:       IANA