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:      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


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

Overlapping Ranges

BGP prefixes that are contained by 38.0.0.0/8

Range	ASN	Company	Num of IPs
38.135.93.0/24	AS393802	Carahsoft Technology Corp.	256
38.211.50.0/24	AS393796	GBT Communications Inc.	256
38.101.209.0/24	AS393662	TNC LEC	256
38.57.187.0/24	AS14016	Capcon Networks LLC	256
38.45.19.0/24	AS393632	The North Frontenac Telephone Corporation Limited	256
38.188.178.0/24	AS273120	TECNOLOGIA, INFORMACION Y COMUNICACIONES DE COLOMBIA SAS (TICCOL)	256
38.98.204.0/24	AS393600	Reliance Standard Life Insurance Company	256
38.87.165.0/24	AS393559	Telroaming Advanced Communication Solution Ltd.	256
38.224.18.0/24	AS273122	ISA NETWORKS I.S.P S.A.S	256
38.253.122.0/24	AS273125	OIT SERVICIO DE DATOS, C.A.	256
38.121.225.0/24	AS273127	VITERI HERNANDEZ CHRYSTIAN PATRICIO	256
38.191.146.0/24	AS273132	VALLE ISP S.A.S.	256
38.191.146.0/24	AS273132	VALLE ISP S.A.S.	256
38.127.198.0/24	AS393559	Telroaming Advanced Communication Solution Ltd.	256
38.128.171.0/24	AS393533	Secwitech	256
38.69.200.0/24	AS393515	R2Net Inc	256
38.98.233.0/24	AS393500	Germantown Friends School	256
38.210.124.0/24	AS273135		256
38.110.130.0/24	AS393449	Teltrex	256
38.132.112.0/24	AS9009	M247 Europe SRL	256
38.132.111.0/24	AS9009	M247 Europe SRL	256
38.132.110.0/24	AS9009	M247 Europe SRL	256
38.211.235.0/24	AS273148	Smartnet Chile telecomunicaciones Ltda.	256
38.132.109.0/24	AS9009	M247 Europe SRL	256
38.102.15.0/24	AS14036	Stack AV Co	256
38.102.15.0/24	AS14036	Stack AV Co	256
38.134.172.0/24	AS273154	MULTICANAL LA SEÑAL DIGITAL, C.A.	256
38.226.199.0/24	AS393437	ChangLian Network Technology Co.,Limited	256
38.226.198.0/24	AS393437	ChangLian Network Technology Co.,Limited	256
38.188.225.0/24	AS273172	INTERCARIBE TV S.A.S.	256
38.210.184.0/24	AS273172	INTERCARIBE TV S.A.S.	256
38.210.185.0/24	AS273172	INTERCARIBE TV S.A.S.	256
38.210.186.0/24	AS273172	INTERCARIBE TV S.A.S.	256
38.107.250.0/24	AS393398	World Host Group US Inc.	256
38.191.190.0/24	AS273174	NOVACOM TIC S.A.S	256
38.191.161.0/24	AS273180	Three Networks S.R.L	256
38.132.108.0/24	AS9009	M247 Europe SRL	256
38.108.119.0/24	AS273182	Cablexpress TV C.A.	256
38.132.107.0/24	AS9009	M247 Europe SRL	256
38.226.139.0/24	AS273187	Fiesta Telecomunicaciones SAS	256
38.226.210.0/24	AS273192		256
38.224.148.0/24	AS273193		256
38.188.48.0/24	AS273197	HH NETWORK	256
38.10.131.0/24	AS273198	RODRIGUEZ CABLEVISION SRL	256
38.52.171.0/24	AS273202	Conectar JDP S.A.S ZOMAC	256
38.107.221.0/24	AS393398	World Host Group US Inc.	256
38.69.235.0/24	AS393346	City National Bank	256
38.64.223.0/24	AS393339	Consilio, LLC	256
38.132.106.0/24	AS9009	M247 Europe SRL	256
38.211.154.0/24	AS273209		256

Hosted domains

There are 4,931,373 domain names hosted across 838,032 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	2101
38.45.65.152	whossmarter.com	2080
38.88.82.220	focuslinkglobal.com	2053
38.45.18.203	fieldomobify.com	1384
38.70.16.72	edhelper.com	1027
38.88.82.216	flatearth101.com	849
38.88.82.214	theaisorter.com	786
38.88.82.62	hobbizine.com	784
38.88.82.217	bojharni.com	737
38.190.187.101	supermixradio502hd.com	731
38.88.82.218	sunnionlineradio.com	713
38.88.82.215	gngpublications.com	680
38.40.244.238	kssmyx.com	612
38.88.82.58	addressingeverysandiegan.com	587
38.63.68.228	irbounn.top	565
38.109.251.135	huatu.com	541
38.88.82.223	rapist.tv	534
38.88.82.224	canadit.com	529
38.134.148.18	antarbettdaftar.site	517
38.47.222.160	694bql.cfd	514

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

2,647,350 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.34.255.65	AS30444 Ocala Fiber Network	`8.18ms` from Miami, US
38.34.239.40	AS30444 Ocala Fiber Network	`9.27ms` from Miami, US
38.35.247.135	AS265509 OPTOENLACES S.A. DE C.V.	`4.55ms` from Santiago de Querétaro, MX
38.35.27.225	AS25668 Cipherkey Exchange Corp.	`2.17ms` from Toronto, CA
38.35.157.5	AS270236 OPTOENLACES S.A. DE C.V.	`2.92ms` from Guadalajara, MX
38.35.225.193	AS265509 OPTOENLACES S.A. DE C.V.	`3.57ms` from Santiago de Querétaro, MX
38.34.226.1	AS30444 Ocala Fiber Network	`8.21ms` from Miami, US
38.34.245.59	AS30444 Ocala Fiber Network	`8.06ms` from Miami, US
38.35.250.17	AS270236 OPTOENLACES S.A. DE C.V.	`20.93ms` from Monterrey, MX
38.35.230.33	AS265509 OPTOENLACES S.A. DE C.V.	`4.10ms` from Santiago de Querétaro, MX
38.35.143.110	AS265509 OPTOENLACES S.A. DE C.V.	`4.38ms` from Santiago de Querétaro, MX
38.35.142.129	AS265509 OPTOENLACES S.A. DE C.V.	`4.36ms` from Santiago de Querétaro, MX
38.35.1.225	AS25668 Cipherkey Exchange Corp.	`2.49ms` from Toronto, CA
38.34.232.1	AS30444 Ocala Fiber Network	`8.15ms` from Miami, US
38.35.138.75	AS265509 OPTOENLACES S.A. DE C.V.	`4.61ms` from Santiago de Querétaro, MX
38.35.139.144	AS265509 OPTOENLACES S.A. DE C.V.	`4.50ms` from Santiago de Querétaro, MX
38.35.249.9	AS270236 OPTOENLACES S.A. DE C.V.	`9.16ms` from Santiago de Querétaro, MX
38.34.249.193	AS30444 Ocala Fiber Network	`8.24ms` from Miami, US
38.34.242.65	AS30444 Ocala Fiber Network	`8.25ms` from Miami, US
38.34.252.1	AS30444 Ocala Fiber Network	`8.21ms` from Miami, US
38.35.240.1	AS265509 OPTOENLACES S.A. DE C.V.	`2.92ms` from Santiago de Querétaro, MX
38.35.28.129	AS25668 Cipherkey Exchange Corp.	`1.65ms` from Toronto, CA
38.34.231.57	AS30444 Ocala Fiber Network	`8.47ms` from Miami, US
38.34.246.134	AS30444 Ocala Fiber Network	`8.14ms` from Miami, US
38.35.238.148	AS265509 OPTOENLACES S.A. DE C.V.	`6.29ms` 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
151.244.93.8	AS205942 Stolitomson Company DOO	`0.10ms` from Amsterdam, NL
5.79.120.72	AS60781 LeaseWeb Netherlands B.V.	`0.21ms` from Amsterdam, NL
67.149.179.56	AS12083 WideOpenWest Finance LLC	`16.21ms` from Atlanta, US
203.113.14.216	AS134166 Internet Data Center Service	`0.86ms` from Bangkok, TH
168.169.102.232	AS25935 Erie 1 BOCES	`3.25ms` from Buffalo, US
167.220.200.24	AS3598 Microsoft Corporation	`0.67ms` from Dublin, IE
45.199.225.232	AS202656 Ivanov Vitaliy Sergeevich	`0.15ms` from Frankfurt am Main, DE
139.11.1.40	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`1.18ms` from Hamburg, DE
34.232.252.8	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
5.188.28.200	AS200487 OOO VPS	`0.53ms` from Saint Petersburg, RU
211.177.124.24	AS9318 SK Broadband Co Ltd	`1.54ms` from Seoul, KR
126.66.115.184	AS17676 SoftBank Corp.	`3.96ms` from Tokyo, JP
87.195.183.56	AS12414 Solcon Internetdiensten B.V.	`5.97ms` from Amsterdam, NL
64.44.34.104	AS20278 Nexeon Technologies, Inc.	`0.44ms` from Buffalo, US
45.17.255.104	AS7018 AT&T Enterprises, LLC	`2.20ms` from Dallas, US
67.190.73.216	AS7922 Comcast Cable Communications, LLC	`2.28ms` from Denver, US
112.123.254.72	AS4837 CHINA UNICOM China169 Backbone	`12.31ms` from Nanjing, CN
94.238.149.200	AS5410 Bouygues Telecom SA	`8.39ms` from Paris, FR
129.151.107.24	AS31898 Oracle Corporation	`0.14ms` from Santiago, CL
79.188.208.136	AS5617 Orange Polska Spolka Akcyjna	`7.33ms` from Warsaw, PL
197.200.255.184	AS36947 Telecom Algeria	`11.56ms` from Algiers, DZ
20.246.148.152	AS8075 Microsoft Corporation	`0.63ms` from Ashburn, US
68.250.115.88	AS7018 AT&T Enterprises, LLC	`3.69ms` from Chicago, US
35.209.18.24	AS15169 Google LLC	`0.12ms` from Council Bluffs, US
63.160.93.40	AS174 Cogent Communications, LLC	`5.72ms` from Detroit, US

Traceroute

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

traceroute -a -n -q1 -f2 38.104.232.73

traceroute to 38.104.232.73 (38.104.232.73): 64 hops max, 52 byte packets

2 [AS174] 38.122.104.97 0.769 ms

3 [AS174] 38.104.232.73 0.666 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On November 22nd 2025

What are IP address ranges?

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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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