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:        [email protected]
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:        [email protected]
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:        [email protected]
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 38.0.0.0/8

Range	ASN	Company	Num of IPs
38.246.190.0/24	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
38.110.158.0/24	AS174	City of Pleasanton	256
38.110.217.0/24	AS174	GIMMAL GROUP	256
38.110.226.0/24	AS174	JunYun Limited	256
38.110.227.0/24	AS174	BUTTERFLY INC	256
38.110.228.0/24	AS174	UltaHost	256
38.110.47.0/24	AS174	Veloxee Corp	256
38.110.58.0/24	AS174	Servidores y Sistemas S.A. de C.V.	256
38.110.61.0/24	AS174	Lockstep Technology Group, LLC	256
38.110.66.0/24	AS174	The Rostie Group	256
38.110.7.0/24	AS174	Lantern Technology LLC	256
38.111.103.0/24	AS174	Lakeland Energy	256
38.111.11.0/24	AS174	HEI Cambridge, LLC d/b/a Le Meridien Cambridge	256
38.111.113.0/24	AS174	Ventum Financial Corp.	256
38.111.115.0/24	AS174	Bells & Whistles Communications, 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

Hosted domains

There are 4,820,427 domain names hosted across 836,512 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	2112
38.45.65.152	propertiesandrealestate.com	2080
38.88.82.220	focuslinkglobal.com	2054
38.45.122.29	68841.ge	1676
38.162.114.157	xthaosheng.com	1385
38.162.114.171	lydrw.com	1384
38.45.18.203	silvercommvoip.solutions	1226
38.109.251.135	youth.cn	1180
38.70.16.72	edhelper.com	1025
38.45.122.28	786669.cc	1024
38.88.82.216	flatearth101.com	845
38.88.82.62	hobbizine.com	781
38.88.82.214	coralhearts.com	777
38.190.187.101	inverflordebelen.com	770
38.88.82.217	uncloakedmystics.com	737
38.88.82.218	sunnionlineradio.com	716
38.45.122.30	479826.cc	716
38.88.82.215	gngpublications.com	677
38.40.244.238	jiajudg.com	606
38.88.82.58	bravestores.com	591

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

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Pingable IPs

2,685,743 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.91.62.33	AS174 Cogent Communications, LLC	`0.47ms` from Ashburn, US
38.91.52.3	AS398347 ULTATEL	`0.21ms` from Ashburn, US
38.91.37.5	AS398409 EyeCare Services Partners Management LLC	`0.43ms` from Ashburn, US
38.90.132.97	AS53980 Brightstar Communications Inc	`0.57ms` from Ashburn, US
38.92.0.1	AS393737 Cpuonsite	`19.11ms` from Dallas, US
38.91.113.162	AS9294 GNET INC.	`0.76ms` from Hong Kong, HK
38.89.155.41	AS398816 Flume	`0.74ms` from New York City, US
38.91.100.21	AS63023 GTHost	`0.11ms` from New York City, US
38.90.27.201	AS23114 Critical Hub Networks	`0.46ms` from San Juan, PR
38.90.31.234	AS23114 Critical Hub Networks	`0.51ms` from San Juan, PR
38.91.54.1	AS174 Cogent Communications, LLC	`0.41ms` from Ashburn, US
38.91.50.1	AS398371 OCBA	`2.03ms` from Ashburn, US
38.92.1.1	AS393737 Cpuonsite	`18.91ms` from Dallas, US
38.89.79.3	AS212238 Datacamp Limited	`0.16ms` from London, GB
38.89.68.162	AS22369 Cloudmylab.com	`1.02ms` from Morris Plains, US
38.89.64.0	AS174 Cogent Communications, LLC	`0.93ms` from New York City, US
38.90.29.2	AS23114 Critical Hub Networks	`0.56ms` from San Juan, PR
38.90.25.41	AS23114 Critical Hub Networks	`0.57ms` from San Juan, PR
38.89.69.254	AS174 Cogent Communications, LLC	`1.96ms` from Ashburn, US
38.91.61.2	AS398371 OCBA	`2.10ms` from Ashburn, US
38.89.89.130	AS174 Cogent Communications, LLC	`0.74ms` from Chicago, US
38.91.119.4	AS9294 GNET INC.	`0.85ms` from Hong Kong, HK
38.90.21.138	AS174 Cogent Communications, LLC	`0.32ms` from Los Angeles, US
38.90.97.1	AS174 Cogent Communications, LLC	`0.25ms` from Los Angeles, US
38.91.101.32	AS63023 GTHost	`0.10ms` from New York City, US

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
141.148.29.8	AS31898 Oracle Corporation	`0.33ms` from Ashburn, US
172.176.229.104	AS8075 Microsoft Corporation	`0.27ms` from Boydton, US
87.150.218.216	AS3320 Deutsche Telekom AG	`3.01ms` from Duesseldorf, DE
79.223.154.200	AS3320 Deutsche Telekom AG	`4.13ms` from Frankfurt am Main, DE
8.217.98.88	AS45102 Alibaba (US) Technology Co., Ltd.	`0.62ms` from Hong Kong, HK
202.78.174.232	AS199524 G-Core Labs S.A.	`0.10ms` from Istanbul, TR
103.73.104.216	AS132298 Antaranga Dot Com Ltd	`5.89ms` from Kolkata, IN
80.244.24.8	AS35432 Cablenet Communication Systems plc	`7.30ms` from Larnaca, CY
42.178.178.168	AS4837 CHINA UNICOM China169 Backbone	`5.21ms` from Liaoyang, CN
122.3.106.120	AS9299 Philippine Long Distance Telephone Company	`1.00ms` from Manila, PH
176.227.185.168	AS34467 JSC Telephone Company "Sotcom"	`4.21ms` from Moscow, RU
114.150.43.184	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.51ms` from Osaka, JP
175.211.208.72	AS4766 Korea Telecom	`1.86ms` from Seoul, KR
60.47.82.72	AS4713 NTT DOCOMO BUSINESS,Inc.	`14.77ms` from Tokyo, JP
35.199.39.8	AS396982 Google LLC	`0.13ms` from Ashburn, US
150.140.221.200	AS5408 National Infrastructures for Research and Technology S.A.	`4.84ms` from Athens, GR
58.131.158.24	AS4847 China Networks Inter-Exchange	`5.55ms` from Beijing, CN
217.13.103.8	AS12301 Invitech ICT Services Kft.	`1.86ms` from Budapest, HU
61.139.56.200	AS4134 CHINANET-BACKBONE	`8.06ms` from Chengdu, CN
177.158.126.40	AS18881 TELEFÔNICA BRASIL S.A	`19.87ms` from Fortaleza, BR
78.33.33.232	AS8468 ENTANET International Limited	`0.81ms` from London, GB
38.244.75.24	AS174 Cogent Communications, LLC	`0.33ms` from Los Angeles, US
108.233.97.168	AS7018 AT&T Enterprises, LLC	`17.32ms` from Los Angeles, US
104.136.237.184	AS33363 Charter Communications, Inc	`11.42ms` from Orlando, US
118.17.189.232	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.87ms` from Osaka, 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 -m9 38.201.46.185

traceroute to 38.201.46.185 (38.201.46.185): 9 hops max, 52 byte packets

3 [AS174] 199.100.4.170 0.756 ms

4 *

5 *

6 [AS174] 154.54.3.145 140.037 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Osasco, BR

On December 15th 2025

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