#
# 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: 204.4.0.0 - 204.7.255.255
CIDR: 204.4.0.0/14
NetName: COGENT-204-4-14
NetHandle: NET-204-4-0-0-1
Parent: NET204 (NET-204-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Cogent Communications, LLC (COGC)
RegDate: 1994-05-05
Updated: 2025-09-23
Ref: https://rdap.arin.net/registry/ip/204.4.0.0
OrgName: Cogent Communications, LLC
OrgId: COGC
Address: 2450 N Street NW
City: Washington
StateProv: DC
PostalCode: 20037
Country: US
RegDate: 2000-05-30
Updated: 2025-09-23
Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref: https://rdap.arin.net/registry/entity/COGC
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
# end
# start
NetRange: 204.6.160.0 - 204.6.175.255
CIDR: 204.6.160.0/20
NetName: TRANSACTION-NETWORK-SERVICES-CGNT-NET-1
NetHandle: NET-204-6-160-0-1
Parent: COGENT-204-4-14 (NET-204-4-0-0-1)
NetType: Reallocated
OriginAS:
Organization: Transaction Network Services, Inc. (TNS-8)
RegDate: 2024-08-22
Updated: 2024-11-06
Comment: Geofeed https://geofeed.tnsi.com/geofeed.csv
Ref: https://rdap.arin.net/registry/ip/204.6.160.0
OrgName: Transaction Network Services, Inc.
OrgId: TNS-8
Address: 10740 Parkridge Boulevard, Suite 100
City: Reston
StateProv: VA
PostalCode: 20191
Country: US
RegDate: 1998-09-08
Updated: 2024-07-03
Ref: https://rdap.arin.net/registry/entity/TNS-8
OrgAbuseHandle: NETWO10135-ARIN
OrgAbuseName: Network Architects
OrgAbusePhone: +1-703-453-8300
OrgAbuseEmail:
[email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/NETWO10135-ARIN
OrgAbuseHandle: BEHAN80-ARIN
OrgAbuseName: Behan, Robbie
OrgAbusePhone: +0114 2920200
OrgAbuseEmail:
[email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/BEHAN80-ARIN
OrgNOCHandle: NOC1590-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-800-240-4824
OrgNOCEmail:
[email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC1590-ARIN
OrgTechHandle: BEHAN80-ARIN
OrgTechName: Behan, Robbie
OrgTechPhone: +0114 2920200
OrgTechEmail:
[email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/BEHAN80-ARIN
OrgTechHandle: NETWO10135-ARIN
OrgTechName: Network Architects
OrgTechPhone: +1-703-453-8300
OrgTechEmail:
[email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/NETWO10135-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)
network:ID:NET4-CC06A00014
network:Network-Name:NET4-CC06A00014
network:IP-Network:204.6.160.0/20
network:Org-Name:Transaction Network Services
network:Street-Address:43830 DEVIN SHAFRON DRIVE
network:City:ASHBURN
network:State:VA
network:Country:US
network:Postal-Code:20147
network:Tech-Contact:ZC108-ARIN
network:Updated:2025-04-29 14:35:12
%ok
Map neighboring IP addresses and identify potential subnet associations.