WHOIS

Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.
Query
66.76.74.183
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:      66.0.0.0 - 66.255.255.255
organisation: ARIN
status:       ALLOCATED

whois:        whois.arin.net

changed:      2000-07
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 66.76.74.183"
#
# Use "?" to get help.
#

NetRange:       66.76.0.0 - 66.76.255.255
CIDR:           66.76.0.0/16
NetName:        SUDDE-NETBLK-66-76-0-0
NetHandle:      NET-66-76-0-0-1
Parent:         NET66 (NET-66-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   Optimum (SUDDE)
RegDate:        2001-02-06
Updated:        2012-03-20
Comment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE
Ref:            https://rdap.arin.net/registry/ip/66.76.0.0


OrgName:        Optimum
OrgId:          SUDDE
Address:        311 NNW Loop 323
City:           Tyler
StateProv:      TX
PostalCode:     75701
Country:        US
RegDate:        2006-05-25
Updated:        2025-08-06
Ref:            https://rdap.arin.net/registry/entity/SUDDE


OrgTechHandle: AUIO-ARIN
OrgTechName:   Altice USA Internet Operations
OrgTechPhone:  +1-516-803-2300 
OrgTechEmail:  hostmaster@cv.net
OrgTechRef:    https://rdap.arin.net/registry/entity/AUIO-ARIN

OrgAbuseHandle: ABUSE6997-ARIN
OrgAbuseName:   Abuse Suddenlink
OrgAbusePhone:  +1-903-266-4800 
OrgAbuseEmail:  abuse@suddenlink.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE6997-ARIN

OrgNOCHandle: NOCSU37-ARIN
OrgNOCName:   NOC Suddenlink
OrgNOCPhone:  +1-866-232-5455 
OrgNOCEmail:  hostmaster@cv.net
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOCSU37-ARIN

RAbuseHandle: ABUSE1394-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-903-266-4800 
RAbuseEmail:  abuse@suddenlink.net
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE1394-ARIN


#
# 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.
#