WHOIS

Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.

Query

73.202.173.45

IANA

whois.iana.org

Referred

whois.arin.net

WHOIS servers can rate limit. Results are cached for performance.

### IANA response (whois.iana.org)

% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object

refer:        whois.arin.net

inetnum:      73.0.0.0 - 73.255.255.255
organisation: ARIN
status:       ALLOCATED

whois:        whois.arin.net

changed:      2005-03
source:       IANA

### Registry response (whois.arin.net)

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


#
# Query terms are ambiguous.  The query is assumed to be:
#     "n 73.202.173.45"
#
# Use "?" to get help.
#

Comcast Cable Communications, LLC CABLE-1 (NET-73-0-0-0-1) 73.0.0.0 - 73.255.255.255
Comcast IP Services, L.L.C. BAYAREA-CPE-46 (NET-73-202-0-0-1) 73.202.0.0 - 73.202.255.255



#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#