ASN Lookup Tool

AS174
Cogent Communications, LLC US US 5837 Routes

AS174Cogent Communications, LLC

AS Number 174
AS Name COGENT-174
Organization Cogent Communications, LLC(cogc)
Country US
Website cogentco.com
Number of IPv4 Routes 5053
Number of IPv6 Routes 784
ASN type ISP
Allocation Status assigned
Registry ARIN
Date Allocated N/A

IP Ranges

Route # IPs
154.56.88.0/22 1024
172.252.156.0/24 256
206.1.116.0/24 256
217.151.240.0/20 4096
149.12.124.0/24 256
38.106.42.0/24 256
38.130.209.0/24 256
38.255.178.0/24 256
149.33.196.0/24 256
buy plan 256
buy plan 256
buy plan 256
buy plan ~604×10²¹
buy plan 1024

Raw Whois Response

#
# 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.
#


ASNumber:       174
ASName:         COGENT-174
ASHandle:       AS174
RegDate:        1996-05-16
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/174



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

OrgNOCHandle: ZC108-ARIN
OrgNOCName:   Cogent Communications
OrgNOCPhone:  +1-877-875-4311 
OrgNOCEmail:  noc@cogentco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ZC108-ARIN

OrgTechHandle: IPALL-ARIN
OrgTechName:   IP Allocation
OrgTechPhone:  +1-877-875-4311 
OrgTechEmail:  ipalloc@cogentco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPALL-ARIN

OrgAbuseHandle: COGEN-ARIN
OrgAbuseName:   Cogent Abuse
OrgAbusePhone:  +1-877-875-4311 
OrgAbuseEmail:  abuse@cogentco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COGEN-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 1997-2025, American Registry for Internet Numbers, Ltd.
#


#
# 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.
#


ASNumber:       174
ASName:         COGENT-174
ASHandle:       AS174
RegDate:        1996-05-16
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/174



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

OrgTechHandle: IPALL-ARIN
OrgTechName:   IP Allocation
OrgTechPhone:  +1-877-875-4311 
OrgTechEmail:  ipalloc@cogentco.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPALL-ARIN

OrgNOCHandle: ZC108-ARIN
OrgNOCName:   Cogent Communications
OrgNOCPhone:  +1-877-875-4311 
OrgNOCEmail:  noc@cogentco.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ZC108-ARIN

OrgAbuseHandle: COGEN-ARIN
OrgAbuseName:   Cogent Abuse
OrgAbusePhone:  +1-877-875-4311 
OrgAbuseEmail:  abuse@cogentco.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/COGEN-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 1997-2025, American Registry for Internet Numbers, Ltd.
#
            

Parsed Whois Response

Peers

AS Number Description Country
AS33069 BCI US
AS18734 Operbes, S.A. de C.V. MX
AS22687 L3 NETWORKS INC US
AS53766 Avago Technologies U.S. Inc. US
AS204528 Space Communication ltd. IL
AS29606 Borwood Ltd GB
AS199645 integrate it Netzwerke GmbH DE
AS3132 Red Cientifica Peruana PE
AS400724 EZProvider Networks, Inc. CA
AS394459 QUANTA SERVICES INC US
AS39634 Via.io SARL FR
AS20652 Unitron Systems & Development LTD GB
AS208354 Alfa.Bit.Omega S.R.L. IT
AS40255 Brigade Capital Management, LP US
AS27715 Locaweb Serviços de Internet S/A BR
AS1443 CooperVision, Inc. US
AS215691 AP INTERACTIVE SOLUTIONS SL ES
AS18046 DONGFONG TW TW
AS200062 Optitrust GmbH DE
buy plan NAVER Cloud Corp. KR
buy plan Shanghai Shuangyu Communication Technology co.,Ltd. HK
buy plan AtNOC GmbH AT
buy plan Spirit Communications US
buy plan The College of William and Mary US

Upstreams

AS Number Description Country
AS5511 Orange S.A. FR
AS31727 Node4 Limited GB
AS20150 anyNode US
AS286 GTT Communications Inc. US
AS2611 BELNET BE
AS31133 PJSC MegaFon RU
AS15943 wilhelm.tel GmbH DE
AS37468 Angola Cables AO
AS6893 Saitis Network, N.Desir CH
buy plan NTS workspace AG CH
buy plan UAB Bite Lietuva LT
buy plan TELEFONICA GLOBAL SOLUTIONS SL ES
buy plan Shanghai Shuangyu Communication Technology co.,Ltd. HK
buy plan SEEWEB s.r.l. IT

Downstreams

AS Number Description Country
AS33069 BCI US
AS18734 Operbes, S.A. de C.V. MX
AS22687 L3 NETWORKS INC US
AS53766 Avago Technologies U.S. Inc. US
AS204528 Space Communication ltd. IL
AS29606 Borwood Ltd GB
AS199645 integrate it Netzwerke GmbH DE
AS3132 Red Cientifica Peruana PE
AS400724 EZProvider Networks, Inc. CA
AS394459 QUANTA SERVICES INC US

Contacts

Email Contacts

Abuse Contacts

Legacy Routes

45.141.206.0/23 2001:49f0:d077::/48 198.255.76.0/23 50.7.114.0/24 23.237.16.0/23 66.90.100.0/24 50.7.176.0/22 2a07:85c5::/48 192.240.112.0/22 38.224.226.0/24 23.237.114.0/23 23.237.50.0/23 23.237.232.0/23 198.255.104.0/23 198.255.59.0/24 107.161.95.0/24 198.255.121.0/24 23.237.78.0/23 136.143.134.0/24 2605:e740:100::/40 50.7.42.0/23 108.165.82.0/24 23.237.102.0/23 50.7.160.0/22 23.237.244.0/24 23.237.62.0/24 50.7.232.0/23 174.141.138.0/23 2001:49f0:d11f::/48 2001:49f0:d048::/48 192.240.100.0/23 146.113.128.0/23 23.237.164.0/23 2620:8:4300::/48 109.121.42.0/24 38.97.111.0/24 2001:49f0:d089::/48 45.148.51.0/24 38.52.194.0/24 198.255.60.0/23 38.225.110.0/24 198.255.88.0/23 192.240.124.0/22 2001:49f0:d00c::/48 38.131.156.0/24 50.7.109.0/24 23.237.220.0/23 23.237.126.0/23 216.24.216.0/24 193.105.197.0/24 2001:49f0:d0f6::/48 38.91.40.0/24 192.157.96.0/19 23.237.248.0/24 23.237.188.0/23 50.7.30.0/23 185.142.236.0/24 38.133.145.0/24 23.237.160.0/23 50.7.118.0/23 198.255.64.0/23 50.7.188.0/22 45.152.8.0/23 198.16.125.0/24 23.237.147.0/24 38.7.107.0/24 2001:49f0:d090::/48 50.7.244.0/23 23.237.74.0/23 50.7.102.0/24 50.7.172.0/22 198.16.72.0/23 74.112.72.0/23 74.80.152.0/24 2001:49f0:d0e4::/48 192.240.98.0/23 50.7.58.0/24 198.16.104.0/23 50.7.80.0/22 2001:49f0:d0d1::/48 38.137.245.0/24 154.29.172.0/24 217.147.166.0/24 2001:49f0:d069::/48 38.94.238.0/23 207.90.226.0/24 5.182.110.0/24 23.237.106.0/23 38.94.32.0/24 50.7.140.0/22 2001:49f0:d068::/48 2001:49f0:d007::/48 194.76.238.0/24 23.237.236.0/23 67.159.6.0/23 190.105.157.0/24 66.90.119.0/24 103.119.112.0/24 174.141.146.0/23 104.223.75.0/24 38.125.238.0/24 50.7.224.0/23 23.237.219.0/24 205.164.240.0/24 2001:49f0:d0c7::/48 154.60.106.0/24 45.91.72.0/24 64.112.96.0/24 31.40.194.0/24 198.255.22.0/23 2001:49f0:d053::/48 38.137.246.0/24 192.240.116.0/24 198.255.125.0/24 38.130.68.0/22 62.72.168.0/24 23.237.54.0/23 45.140.246.0/24 198.255.100.0/23 198.255.85.0/24 104.36.152.0/22 168.245.130.0/23 98.142.250.0/24 206.125.62.0/23 204.154.174.0/23 149.5.241.0/24 50.7.248.0/23 198.16.76.0/23 50.7.22.0/23 154.9.155.0/24 2001:49f0:d0b1::/48 23.237.196.0/23 2001:49f0:d082::/48 23.237.53.0/24 50.7.126.0/23 2001:49f0:d07d::/48 2001:49f0:d0c6::/48 2001:49f0:d10d::/48 154.21.112.0/24 23.237.152.0/23 174.141.140.0/22 198.255.18.0/23 23.237.2.0/23 23.237.247.0/24 23.237.202.0/23 179.61.239.0/24 204.62.193.0/24 199.167.227.0/24 91.90.161.0/24 198.181.163.0/24 2001:49f0:d006::/48 84.239.29.0/24 2001:49f0:d0f5::/48 198.16.80.0/23 104.234.238.0/24 192.84.254.0/24 45.87.130.0/23 50.7.28.0/23 23.237.82.0/23 50.7.164.0/22 154.62.128.0/24 154.9.164.0/22 74.80.147.0/24 23.237.218.0/24 198.90.24.0/24 38.125.237.0/24 154.13.149.0/24 154.44.9.0/24 50.7.200.0/23 193.160.21.0/24 74.80.189.0/24 216.227.132.0/24 23.237.94.0/23 38.130.88.0/22 50.7.192.0/23 154.3.57.0/24 191.96.190.0/24 45.137.87.0/24 23.237.228.0/23 154.18.185.0/24 23.237.48.0/24 206.148.20.0/24 198.16.66.0/23 198.255.119.0/24 45.152.58.0/23 2001:49f0:d059::/48 38.124.60.0/23 204.217.233.0/24 74.80.146.0/24 170.199.240.0/23 2001:49f0:d050::/48 193.96.108.0/23 170.199.242.0/23 2001:49f0:d0c4::/48 38.7.106.0/24 50.7.144.0/22 50.7.202.0/23 2001:49f0:d002::/48 2001:49f0:d0df::/48 45.152.56.0/23 23.237.200.0/23 198.255.117.0/24 168.100.228.0/23 198.16.126.0/24 66.90.103.0/24 198.255.122.0/24 38.255.29.0/24 50.7.117.0/24 2001:49f0:d01d::/48 23.237.58.0/24 198.255.20.0/23 66.90.120.0/24 2001:49f0:d052::/48 38.159.164.0/24 198.255.96.0/23 38.124.72.0/22 38.137.243.0/24 199.184.222.0/24 67.205.246.0/24 104.223.7.0/24 198.16.116.0/24 50.7.212.0/23 108.179.64.0/18 23.237.36.0/23 2001:49f0:d049::/48 2001:49f0:d004::/48 198.255.124.0/24 195.234.90.0/23 154.30.157.0/24 2001:49f0:d0b2::/48 181.214.94.0/24 217.147.168.0/24 104.192.208.0/21 50.7.96.0/24 38.52.193.0/24 50.7.96.0/22 198.255.112.0/23 198.255.8.0/22 201.49.189.0/24 38.65.28.0/24 206.197.47.0/24 192.240.120.0/23 172.83.86.0/23 2001:49f0:d105::/48 23.237.207.0/24 72.13.150.0/24 23.237.198.0/23 2605:54c0::/32 23.237.96.0/23 50.7.55.0/24 66.90.86.0/23 149.64.226.0/24 154.3.236.0/24 89.116.150.0/24 154.19.188.0/24 23.237.41.0/24 162.254.135.0/24 23.237.86.0/23 2001:49f0:d0b4::/48 2001:49f0:d0ed::/48 198.255.68.0/23 23.237.140.0/23 2001:df1:6e80::/48 2001:49f0:d0c9::/48 114.114.112.0/21 185.66.8.0/22 23.237.56.0/23 38.101.24.0/22 198.255.98.0/23 192.240.122.0/24 23.237.110.0/23 45.91.74.0/23 198.16.74.0/23 23.237.210.0/23 23.237.205.0/24 2001:49f0:d05b::/48 50.7.152.0/22 23.237.84.0/23 50.7.210.0/23 50.7.240.0/23 38.133.190.0/23 38.86.70.0/23 38.134.125.0/24 2001:49f0:d0d2::/48 198.90.28.0/24 154.17.76.0/22 198.255.114.0/23 198.153.16.0/22 38.7.111.0/24 23.26.154.0/24 198.16.92.0/23 38.124.110.0/23 154.59.106.0/23 38.7.128.0/24 23.26.149.0/24 23.237.38.0/23 198.16.118.0/24 206.125.57.0/24 2001:49f0:d0e2::/48 206.85.191.0/24 192.240.96.0/23 2001:49f0:d060::/48 38.7.108.0/24 149.12.200.0/23 198.16.99.0/24 23.237.66.0/23 62.72.173.0/24 66.28.84.0/24 38.172.215.0/24 191.96.145.0/24 23.237.243.0/24 23.237.28.0/23 2001:49f0:d00d::/48 205.159.150.0/24 149.5.225.0/24 72.13.132.0/23 198.16.108.0/24 50.7.104.0/22 50.7.220.0/23 2a07:85c3::/48 216.131.105.0/24 198.153.230.0/24 50.7.132.0/22 64.92.64.0/24 198.255.78.0/23 154.12.116.0/22 2001:49f0:d095::/48 23.237.130.0/23 149.115.192.0/20 23.237.18.0/23 136.143.130.0/24 23.237.253.0/24 95.181.173.0/24 72.13.142.0/23 50.7.230.0/23 50.7.88.0/22 50.7.63.0/24 2001:49f0:d047::/48 198.16.64.0/23 50.7.180.0/22 206.85.7.0/24 185.70.97.0/24 216.227.134.0/23 38.89.68.0/24 66.90.94.0/24 198.255.62.0/23 50.7.4.0/23 23.237.162.0/23 209.35.104.0/24 154.18.184.0/24 23.237.47.0/24 23.237.246.0/24 50.7.100.0/24 38.77.226.0/24 38.7.105.0/24 2001:49f0:d04f::/48 2001:49f0:d0ad::/48 216.227.133.0/24 23.237.64.0/23 2001:49f0:d00a::/48 198.16.127.0/24 50.7.246.0/23 38.125.232.0/24 64.92.66.0/23 80.91.90.0/24 198.16.82.0/23 66.90.81.0/24 50.7.68.0/22 23.237.76.0/23 216.10.149.0/24 185.165.190.0/24 23.237.178.0/23 23.237.230.0/24 198.255.74.0/24 38.255.31.0/24 23.237.150.0/23 23.237.145.0/24 136.143.132.0/23 38.172.214.0/24 50.7.128.0/22 2001:49f0:d0dc::/48 198.255.106.0/23 198.16.98.0/24 38.159.228.0/24 81.22.131.0/24 103.75.216.0/24 23.26.148.0/24 198.255.102.0/24 185.188.252.0/24 23.237.112.0/23 38.226.23.0/24 2001:49f0:d0bf::/48 50.7.52.0/24 38.7.110.0/24 50.7.234.0/23 24.238.104.0/23 23.237.251.0/24 2a00:f620:1::/48 91.189.104.0/21 50.7.112.0/24 199.167.225.0/24 38.125.239.0/24 38.130.80.0/22 154.3.61.0/24 38.137.247.0/24 50.7.124.0/24 2001:49f0:d087::/48 23.237.116.0/23 2001:49f0:d084::/48 198.255.118.0/24 23.237.26.0/23 198.16.106.0/23 198.255.86.0/23 199.16.106.0/24 23.237.0.0/23 50.7.222.0/23 2001:49f0:d0c5::/48 72.13.134.0/24 2001:49f0:d07e::/48 209.146.116.0/24 23.237.242.0/24 66.28.85.0/24 38.124.108.0/23 2001:49f0:d010::/48 2001:49f0:d055::/48 50.7.198.0/23 198.255.70.0/23 2001:49f0:d08d::/48 2001:49f0:d054::/48 38.125.236.0/24 217.147.167.0/24 198.16.119.0/24 198.255.127.0/24 192.195.3.0/24 23.237.72.0/23 104.247.116.0/24 198.90.29.0/24 23.237.255.0/24 2001:49f0:d099::/48 38.101.249.0/24 50.7.238.0/23 2001:49f0:d05e::/48 168.100.236.0/23 154.21.113.0/24 2001:49f0:d0b6::/48 23.237.68.0/23 80.91.70.0/24 188.255.140.0/24 38.100.105.0/24 24.238.96.0/23 141.193.7.0/24 198.16.123.0/24 50.7.136.0/22 50.7.32.0/23 23.237.104.0/23 2001:49f0:d122::/48 91.213.174.0/24 2001:49f0:d109::/48 154.43.165.0/24 50.7.125.0/24 45.87.68.0/24 198.255.66.0/23 2602:fd92:140::/48 50.7.242.0/23 2001:49f0:d0b7::/48 38.110.36.0/24 174.141.128.0/21 204.157.76.0/24 2001:49f0:d0ea::/48 23.237.44.0/23 38.52.195.0/24 198.255.110.0/23 198.255.12.0/22 149.5.5.0/24 198.16.70.0/23 23.179.208.0/24 154.3.59.0/24 198.16.124.0/24 38.210.13.0/24 154.57.158.0/24 50.7.204.0/23 50.7.120.0/22 23.237.59.0/24 195.191.244.0/23 2001:49f0:d01f::/48 198.255.126.0/24 198.255.120.0/24 194.59.9.0/24 50.7.116.0/24 199.190.183.0/24 154.30.156.0/24 198.255.94.0/23 23.237.34.0/23 66.90.102.0/24 24.238.2.0/24 2001:49f0:d0d0::/48 23.237.250.0/24 23.237.88.0/23 108.165.83.0/24 38.135.182.0/24 38.22.219.0/24 166.0.153.0/24 23.237.231.0/24 23.237.187.0/24 2001:49f0:d025::/48 2001:49f0:d07f::/48 50.7.214.0/23 23.237.80.0/23 50.7.72.0/22 198.16.112.0/23 192.1.48.0/21 2001:49f0:d0ae::/48 206.125.48.0/24 108.165.81.0/24 23.237.146.0/24 198.255.46.0/23 209.14.139.0/24 198.255.92.0/23 66.90.101.0/24 194.76.192.0/24 38.7.104.0/24 50.7.101.0/24 198.255.44.0/23 104.218.62.0/24 23.237.158.0/23 23.237.194.0/23 23.237.216.0/24 2001:49f0:d0b0::/48 206.85.190.0/24 50.7.216.0/23 82.163.104.0/21 195.210.108.0/24 103.75.217.0/24 109.121.45.0/24 198.16.95.0/24 2001:49f0:d0a5::/48 192.240.108.0/22 50.7.24.0/23 2001:49f0:d064::/48 23.237.32.0/23 2001:49f0:d0ac::/48 2001:49f0:d091::/48 198.255.90.0/23 24.238.12.0/22 198.255.103.0/24 38.92.43.0/24 67.205.255.0/24 38.102.15.0/24 2001:49f0:d0a3::/48 50.7.156.0/23 154.30.151.0/24 50.7.36.0/23 198.16.68.0/23 23.237.148.0/23 2001:49f0:d08a::/48 23.237.6.0/23 198.16.110.0/23 45.42.40.0/24 38.102.228.0/24 185.14.164.0/22 23.237.182.0/23 50.7.84.0/22 2001:49f0:d04c::/48 23.237.30.0/24 50.7.26.0/24 23.237.144.0/24 198.16.122.0/24 85.208.112.0/24 149.5.226.0/24 23.26.155.0/24 23.237.20.0/22 198.255.80.0/23 72.13.131.0/24 23.237.42.0/23 50.7.108.0/24 38.76.67.0/24 198.16.109.0/24 198.16.78.0/23 38.250.248.0/22 206.125.61.0/24 192.240.123.0/24 23.237.192.0/23 198.255.2.0/24 154.60.107.0/24 192.133.83.0/24 136.143.128.0/23 2001:49f0:d0c8::/48 198.16.100.0/23 2001:49f0:d0e1::/48 50.7.194.0/23 50.7.206.0/23 24.238.0.0/24 103.250.205.0/24 23.237.254.0/24 192.240.118.0/23 23.237.154.0/23 154.9.160.0/22 72.13.128.0/23 198.16.88.0/23 50.7.254.0/24 2001:49f0:d023::/48 74.80.153.0/24 50.7.64.0/22 50.7.168.0/22 38.124.68.0/22 38.213.224.0/19 154.19.189.0/24 149.5.244.0/22 23.237.252.0/24 2001:49f0:d04a::/48 24.238.114.0/23 50.7.218.0/23 109.121.37.0/24 2001:49f0:d0b3::/48 154.9.2.0/23 2001:49f0:d07a::/48 209.146.107.0/24 69.55.234.0/24 23.237.156.0/23 198.16.120.0/24 23.237.40.0/24 23.237.4.0/23 23.237.118.0/23 50.7.0.0/24 2001:49f0:d086::/48 66.90.106.0/24 38.7.109.0/24 198.255.82.0/23 50.7.103.0/24 109.121.47.0/24 63.247.224.0/19 50.7.148.0/22 193.107.240.0/22 38.71.19.0/24 217.147.169.0/24 154.3.169.0/24 23.237.60.0/23 2001:49f0:d0e8::/48 50.7.208.0/23 2001:49f0:d051::/48 23.237.174.0/23 50.7.196.0/23 154.3.237.0/24 50.7.226.0/23 149.100.8.0/24 50.7.92.0/22 38.92.211.0/24 198.16.102.0/23 84.239.30.0/24 198.255.4.0/22 67.205.242.0/23 62.72.174.0/24 185.30.233.0/24 199.29.143.0/24 2001:49f0:d076::/48 198.255.72.0/23 23.237.108.0/23 198.16.117.0/24 74.80.188.0/24 198.255.123.0/24 2620:fe:2040::/48 67.159.8.0/23 2001:49f0:d0fc::/48 50.7.236.0/23 2001:49f0:d06a::/48 62.72.164.0/24 72.13.148.0/24 154.9.180.0/24 50.7.186.0/23

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