
IP:
204.243.181.0 is an IP version 4.
Geo:

The IP is from United States (US)
ASN:
AS Number: 174
AS Description: COGENT-174, US
Reverse DNS:
This domain does not have a reverse DNS entry.
Whois:
#
# 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 1997-2025, American Registry for Internet Numbers, Ltd.
#
# start
NetRange: 204.240.0.0 - 204.243.255.255
CIDR: 204.240.0.0/14
NetName: COGENT-204-240-14
NetHandle: NET-204-240-0-0-1
Parent: NET204 (NET-204-0-0-0-0)
NetType: Direct Allocation
OriginAS: AS174
Organization: PSINet, Inc. (PSI)
RegDate: 1994-12-20
Updated: 2011-05-27
Ref: https://rdap.arin.net/registry/ip/204.240.0.0
OrgName: PSINet, Inc.
OrgId: PSI
Address: 2450 N Street NW
City: Washington
StateProv: DC
PostalCode: 20037
Country: US
RegDate:
Updated: 2023-10-11
Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref: https://rdap.arin.net/registry/entity/PSI
ReferralServer: rwhois://rwhois.cogentco.com:4321
OrgAbuseHandle: COGEN-ARIN
OrgAbuseName: Cogent Abuse
OrgAbusePhone: +1-877-875-4311
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN
OrgTechHandle: IPALL-ARIN
OrgTechName: IP Allocation
OrgTechPhone: +1-877-875-4311
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN
OrgNOCHandle: ZC108-ARIN
OrgNOCName: Cogent Communications
OrgNOCPhone: +1-877-875-4311
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN
RTechHandle: PSI-NISC-ARIN
RTechName: IP Allocation
RTechPhone: +1-877-875-4311
RTechEmail: [email protected]
RTechRef: https://rdap.arin.net/registry/entity/PSI-NISC-ARIN
# end
# start
NetRange: 204.243.172.0 - 204.243.184.255
CIDR: 204.243.184.0/24, 204.243.176.0/21, 204.243.172.0/22
NetName: PSI-BLK-C2-172
NetHandle: NET-204-243-172-0-1
Parent: COGENT-204-240-14 (NET-204-240-0-0-1)
NetType: Reassigned
OriginAS:
Customer: PSINET/VHB Inc. (C00006178)
RegDate: 1995-06-03
Updated: 1995-06-03
Ref: https://rdap.arin.net/registry/ip/204.243.172.0
CustName: PSINET/VHB Inc.
Address: 101 Walnut Street
City: Watertown
StateProv: MA
PostalCode: 02172
Country: US
RegDate: 1995-06-03
Updated: 2011-03-19
Ref: https://rdap.arin.net/registry/entity/C00006178
OrgAbuseHandle: COGEN-ARIN
OrgAbuseName: Cogent Abuse
OrgAbusePhone: +1-877-875-4311
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN
OrgTechHandle: IPALL-ARIN
OrgTechName: IP Allocation
OrgTechPhone: +1-877-875-4311
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN
OrgNOCHandle: ZC108-ARIN
OrgNOCName: Cogent Communications
OrgNOCPhone: +1-877-875-4311
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN
RTechHandle: PSI-NISC-ARIN
RTechName: IP Allocation
RTechPhone: +1-877-875-4311
RTechEmail: [email protected]
RTechRef: https://rdap.arin.net/registry/entity/PSI-NISC-ARIN
# end
#
# 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 1997-2025, American Registry for Internet Numbers, Ltd.
#
Found a referral to rwhois.cogentco.com:4321.
#rwhois V-1.5:0010b0:00 rwhois.cogentco.com (CGNT rwhoisd 1.2.1)
#error 230 No objects found