WHOIS

Lookup an IP or domain. Uses IANA referral first, then registry WHOIS.
Query
216.170.153.146
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:      216.0.0.0 - 216.255.255.255
organisation: ARIN
status:       ALLOCATED

whois:        whois.arin.net

changed:      1998-04
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 216.170.153.146"
#
# Use "?" to get help.
#

NetRange:       216.170.128.0 - 216.170.255.255
CIDR:           216.170.128.0/17
NetName:        NETBLK-TDSNET-BLK
NetHandle:      NET-216-170-128-0-1
Parent:         NET216 (NET-216-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       
Organization:   TDS TELECOM (TDST)
RegDate:        2000-07-18
Updated:        2019-01-07
Ref:            https://rdap.arin.net/registry/ip/216.170.128.0


OrgName:        TDS TELECOM
OrgId:          TDST
Address:        525 Junction Rd.
City:           Madison
StateProv:      WI
PostalCode:     53717
Country:        US
RegDate:        1994-12-16
Updated:        2024-11-25
Comment:        http://www.tdstelecom.com
Ref:            https://rdap.arin.net/registry/entity/TDST


OrgTechHandle: INO44-ARIN
OrgTechName:   IP Network Operations
OrgTechPhone:  +1-800-358-3648 
OrgTechEmail:  ispadmin@tdstelecom.com
OrgTechRef:    https://rdap.arin.net/registry/entity/INO44-ARIN

OrgTechHandle: SERVI6-ARIN
OrgTechName:   Service Activation
OrgTechPhone:  +1-800-358-3648 
OrgTechEmail:  serviceactivation@tdstelecom.com
OrgTechRef:    https://rdap.arin.net/registry/entity/SERVI6-ARIN

OrgTechHandle: INE14-ARIN
OrgTechName:   IP Network Engineering
OrgTechPhone:  +1-800-358-3648 
OrgTechEmail:  IPRequests@tdstelecom.com
OrgTechRef:    https://rdap.arin.net/registry/entity/INE14-ARIN

OrgAbuseHandle: ABUSE163-ARIN
OrgAbuseName:   abuse
OrgAbusePhone:  +1-800-358-3648 
OrgAbuseEmail:  abuse@tds.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE163-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.
#