WHOIS

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

Query

12.203.87.114

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:      12.0.0.0 - 12.255.255.255
organisation: AT&T Bell Laboratories
status:       LEGACY

whois:        whois.arin.net

changed:      1995-06
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 12.203.87.114"
#
# Use "?" to get help.
#

AT&T Enterprises, LLC ATT (NET-12-0-0-0-1) 12.0.0.0 - 12.255.255.255
AT&T Services, Inc. ATTWORLD25 (NET-12-203-0-0-1) 12.203.0.0 - 12.203.255.255
PERSONAL NETWORK COMPUTING PERSONAL941-86 (NET-12-203-86-0-1) 12.203.86.0 - 12.203.87.255



#
# 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.
#