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  2. 38.0.0.0/8
  3. AS174  | 38.0.0.0/8

38.0.0.0/8

AS174  ·  Cogent Communications, LLC

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Summary

Country United States
Domain cogentco.com
ASN AS174
Registry ARIN
ID COGENT-A

WHOIS Details

NetHandle:      NET-38-0-0-0-1
OrgID:          COGC
Parent:         
NetName:        COGENT-A
NetRange:       38.0.0.0 - 38.255.255.255
NetType:        allocation
RegDate:        1991-04-16
Updated:        2025-09-23
Source:         ARIN


OrgID:          COGC
OrgName:        Cogent Communications, LLC
CanAllocate:    
Street:         2450 N Street NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
Comment:        Geofeed https://geofeed.cogentco.com/geofeed.csv
RegDate:        2000-05-30
Updated:        2025-09-23
ReferralServer: rwhois://rwhois.cogentco.com:4321
OrgAdminHandle: IPALL-ARIN
OrgTechHandle:  IPALL-ARIN
OrgAbuseHandle: COGEN-ARIN
OrgNOCHandle:   ZC108-ARIN
Source:         ARIN


POCHandle:      IPALL-ARIN
IsRole:         Y
LastName:       IP Allocation
FirstName:      
Street:         2450 N Street NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
RegDate:        2002-11-13
Updated:        2025-07-08
OfficePhone:    +1-877-875-4311
Mailbox:        ipalloc@cogentco.com
Source:         ARIN


POCHandle:      COGEN-ARIN
IsRole:         Y
LastName:       Cogent Abuse
FirstName:      
Street:         2450 N street, NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
RegDate:        2002-11-13
Updated:        2025-07-08
OfficePhone:    +1-877-875-4311
Mailbox:        abuse@cogentco.com
Source:         ARIN


POCHandle:      ZC108-ARIN
IsRole:         Y
LastName:       Cogent Communications
FirstName:      
Street:         2450 N Street NW
City:           Washington
State/Prov:     DC
Country:        US
PostalCode:     20037
RegDate:        2001-01-24
Updated:        2025-07-08
OfficePhone:    +1-877-875-4311
Mailbox:        noc@cogentco.com
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 38.0.0.0/8

Range ASN Company Num of IPs
38.246.191.0/24 AS174 JunYun Limited 256
38.111.223.0/24 AS1008 GANJINGWORLD CORPORATION 256
38.246.126.0/24 AS1008 Ganjingworld Corporation 256
38.246.81.0/24 AS1008 Ganjingworld Corporation 256
38.69.152.0/24 AS10099 China Unicom (Hong Kong) Operations Limited 256
38.111.220.0/24 AS10111 Zeofast Network / Flarespeed Technology Co Ltd 256
38.111.221.0/24 AS10111 Zeofast Network / Flarespeed Technology Co Ltd 256
38.124.249.0/24 AS10886 University of Maryland/Mid-Atlantic Crossroads (MAX) 256
38.99.168.0/24 AS1100 Ravand CyberTech Inc 256
38.117.75.0/24 AS11077 XBASE Technologies Corp. 256
38.69.130.0/24 AS11077 XBASE Technologies Corp. 256
38.92.53.0/24 AS11085 NCS Technologies 256
38.105.33.0/24 AS11088 IConnect Inc. 256
38.64.74.0/24 AS11160 COSTAR GROUP INC 256
38.115.1.0/24 AS11361 Boscov's Department Store LLC 256
38.211.38.0/24 AS11432 Telium Telecomunicações Ltda 256
38.52.204.0/24 AS11432 Telium Telecomunicações Ltda 256
38.105.7.0/24 AS11457 Digital Realty Trust 256
38.71.70.0/24 AS11586 Johnson Outdoors Inc. 256
38.99.129.0/24 AS11636 MServices Limited Partnership 256
38.29.170.0/24 AS11686 Education Networks of America 256
38.27.118.0/24 AS11713 Congruity 256
38.79.75.0/24 AS11775 Clougix 256
38.105.166.0/24 AS11903 Lincolnshire Management Inc 256
38.111.149.0/24 AS174 The Presidio Trust 256
38.111.157.0/24 AS174 California Nurses Association 256
38.111.16.0/24 AS174 Massachusetts Convention Center Authority 256
38.111.161.0/24 AS174 Surge Staffing 256
38.111.163.0/24 AS174 SelectUS Consulting 256
38.111.17.0/24 AS174 Cogent Communications - IPENG 256
38.111.18.0/24 AS174 Guang Xun Yong Yao Limited 256
38.111.181.0/24 AS174 Porter Wright Morris & Arthur LLP 256
38.111.192.0/24 AS174 OpsRamp Inc 256
38.111.193.0/24 AS174 Cogent communications - IPENG 256
38.111.195.0/24 AS174 Altair Engineering, Inc 256
38.111.197.0/24 AS174 Security Centric 256
38.111.206.0/24 AS174 SlashNext, Inc. 256
38.111.207.0/24 AS174 City of Long Beach, Harbor Department 256
38.111.219.0/24 AS174 KAOPU CLOUD HK LIMITED 256
38.111.248.0/24 AS174 1547 CSR-South Bend, LLC 256
38.111.252.0/24 AS174 enFocus 256
38.111.56.0/24 AS174 Cisco Systems Inc 256
38.111.61.0/24 AS174 Guang Xun Yong Yao Limited 256
38.111.96.0/24 AS174 Bells & Whistles Communications, Inc. 256
38.111.98.0/24 AS174 Teranet Inc. 256
38.112.60.0/24 AS174 J2 Lab 256
38.112.61.0/24 AS174 MR Networking, SRL 256
38.112.63.0/24 AS174 J2 Lab 256
38.113.115.0/24 AS174 Sierra Nevada Communications 256
38.113.120.0/24 AS174 Regus Management Group, LLC 256

Hosted domains

There are 4,945,421 domain names hosted across 838,169 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
38.64.166.13 laredorealestatehomes.com 2098
38.88.82.220 focuslinkglobal.com 2053
38.45.18.203 ipp-dofrecords.com 1431
38.70.16.72 edhelper.com 1027
38.88.82.216 flatearth101.com 847
38.88.82.214 harmonynhymns.com 789
38.88.82.62 hobbizine.com 784
38.88.82.217 hudsonvalleyfluteensemble.org 739
38.190.187.101 helpme.com.ve 733
38.88.82.218 sunnionlineradio.com 715
38.88.82.215 gngpublications.com 678
38.40.244.238 zolsky.net 614
38.88.82.58 yesterwhy.com 587
38.63.68.228 smnuoh.bond 567
38.88.82.223 elvispresleyrapist.com 534
38.88.82.224 cssgroups.in 530
38.134.148.18 jiatingyaoxiang.com 527
38.47.222.160 juueoy.cfd 514
38.63.50.90 xzsfjsh.cn 486
38.61.9.13 lvnaipj.com 473

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

2,519,971 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
38.34.181.3 AS18978 Enzu Inc 0.91ms from Los Angeles, US
38.35.134.217 AS265509 OPTOENLACES S.A. DE C.V. 4.45ms from Santiago de Querétaro, MX
38.35.144.189 AS265509 OPTOENLACES S.A. DE C.V. 4.47ms from Santiago de Querétaro, MX
38.35.133.31 AS265509 OPTOENLACES S.A. DE C.V. 4.62ms from Santiago de Querétaro, MX
38.34.217.124 AS174 Cogent Communications, LLC 10.15ms from Dallas, US
38.35.150.181 AS265509 OPTOENLACES S.A. DE C.V. 4.34ms from Santiago de Querétaro, MX
38.35.16.1 AS25668 Cipherkey Exchange Corp. 6.52ms from Toronto, CA
38.35.22.161 AS25668 Cipherkey Exchange Corp. 3.50ms from Toronto, CA
38.34.218.201 AS174 Cogent Communications, LLC 9.96ms from Dallas, US
38.34.187.19 AS18978 Enzu Inc 0.26ms from Hong Kong, HK
38.34.246.180 AS30444 Ocala Fiber Network 8.12ms from Miami, US
38.34.225.211 AS30444 Ocala Fiber Network 8.42ms from Miami, US
38.34.238.2 AS30444 Ocala Fiber Network 8.08ms from Miami, US
38.35.137.227 AS265509 OPTOENLACES S.A. DE C.V. 4.41ms from Santiago de Querétaro, MX
38.35.13.97 AS25668 Cipherkey Exchange Corp. 2.05ms from Toronto, CA
38.35.12.97 AS25668 Cipherkey Exchange Corp. 1.43ms from Toronto, CA
38.35.14.129 AS25668 Cipherkey Exchange Corp. 1.89ms from Toronto, CA
38.34.199.1 AS174 Cogent Communications, LLC 8.38ms from Dallas, US
38.34.206.24 AS174 Cogent Communications, LLC 10.33ms from Dallas, US
38.34.221.1 AS174 Cogent Communications, LLC 8.39ms from Dallas, US
38.34.254.193 AS30444 Ocala Fiber Network 8.30ms from Miami, US
38.34.241.129 AS30444 Ocala Fiber Network 8.17ms from Miami, US
38.35.135.4 AS265509 OPTOENLACES S.A. DE C.V. 4.62ms from Santiago de Querétaro, MX
38.35.236.8 AS265509 OPTOENLACES S.A. DE C.V. 5.11ms from Santiago de Querétaro, MX
38.35.228.25 AS265509 OPTOENLACES S.A. DE C.V. 5.61ms from Santiago de Querétaro, MX

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
47.253.95.136 AS45102 Alibaba (US) Technology Co., Ltd. 0.30ms from Ashburn, US
67.149.179.56 AS12083 WideOpenWest Finance LLC 16.07ms from Atlanta, US
45.25.43.88 AS7018 AT&T Enterprises, LLC 3.89ms from Atlanta, US
190.210.236.200 AS16814 NSS S.A. 0.71ms from Buenos Aires, AR
41.234.206.200 AS8452 TE-AS 2.63ms from Cairo, EG
99.190.148.104 AS7018 AT&T Enterprises, LLC 1.55ms from Houston, US
23.14.120.24 AS16625 Akamai Technologies, Inc. 0.12ms from Istanbul, TR
146.120.220.40 AS42350 Kupar Ihor 0.49ms from Kyiv, UA
142.111.136.232 AS209854 Cyberzone S.A. 0.49ms from Los Angeles, US
189.196.138.8 AS13999 Mega Cable, S.A. de C.V. 10.58ms from Santiago de Querétaro, MX
71.231.207.72 AS7922 Comcast Cable Communications, LLC 3.88ms from Seattle, US
66.10.127.88 AS7018 AT&T Enterprises, LLC 9.57ms from Secaucus, US
167.179.110.40 AS20473 The Constant Company, LLC 0.16ms from Tokyo, JP
222.2.239.8 AS2516 KDDI CORPORATION 5.92ms from Tokyo, JP
152.23.234.152 AS36850 University of North Carolina at Chapel Hill 10.20ms from Ashburn, US
40.120.122.24 AS8075 Microsoft Corporation 0.92ms from Dubai, AE
2.243.95.216 AS6805 Telefonica Germany GmbH & Co.OHG 3.25ms from Duesseldorf, DE
91.20.104.216 AS3320 Deutsche Telekom AG 8.52ms from Frankfurt am Main, DE
93.220.137.136 AS3320 Deutsche Telekom AG 5.16ms from Frankfurt am Main, DE
36.73.157.120 AS7713 PT Telekomunikasi Indonesia 7.04ms from Jakarta, ID
47.156.5.168 AS5650 Frontier Communications of America, Inc. 3.40ms from Los Angeles, US
14.200.101.136 AS7545 TPG Telecom Limited 11.06ms from Melbourne, AU
201.116.84.120 AS8151 UNINET 4.04ms from Santiago de Queretaro, MX
177.172.253.24 AS26599 TELEFÔNICA BRASIL S.A 4.47ms from Sao Paulo, BR
220.109.208.24 AS4713 NTT DOCOMO BUSINESS,Inc. 1.17ms from Tokyo, JP

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f3 38.242.163.151
traceroute to 38.242.163.151 (38.242.163.151): 64 hops max, 52 byte packets
3 [] 195.66.238.78 1.869 ms
Measurement taken from IPinfo ProbeNet in London, GB
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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