# Copyright 1997-2024, American Registry for Internet Numbers, Ltd.
#
API
You may perform this lookup using the API and get the results as easy-to-parse JSON data.
Read more on the API at https://iamroot.tech/about/api (regarding authentication and rate limits, among other things), or give it a go right away using the 'try it' button.
INFRDAP not possible or failed An error occurred, while connecting to '199.5.26.160' on port '443'!
5.214
+000
Done
5.214
+000
Try WHOIS lookup
5.378
+164
Asking 'whois.iana.org' for info on '172.110.121.0' - recieved 483 bytes in 123ms. Got refered to 'whois.arin.net'.
5.471
+093
Asking 'whois.arin.net' for info on '172.110.121.0' - recieved a valid response of 1.775 bytes in 62ms.
5.482
+011
Done
Additional details
% IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object
refer: whois.arin.net
inetnum: 172.0.0.0 - 172.255.255.255 organisation: Administered by ARIN status: LEGACY
remarks: 172.16.0.0/12 reserved for Private-Use Networks remarks: [RFC1918]. Complete registration details are found remarks: iniana-ipv4-special-registry.
whois: whois.arin.net
changed: 1993-05 source: IANA
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