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:      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:      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
38.105.230.0/24	AS394034	Brooklyn Fiber	256
38.100.171.0/24	AS394034	Brooklyn Fiber	256
38.224.18.0/24	AS273122	ISA NETWORKS I.S.P S.A.S	256
38.121.225.0/24	AS273127	VITERI HERNANDEZ CHRYSTIAN PATRICIO	256
38.191.146.0/24	AS273132	VALLE ISP S.A.S.	256
38.70.196.0/24	AS393989	GTT Americas, LLC	256
38.125.46.0/24	AS393925	Samuel Ramirez & Company, Inc.	256
38.45.96.0/24	AS393883	WANRack	256
38.87.43.0/24	AS393871	Havas Media Group USA	256
38.210.124.0/24	AS273135		256
38.81.178.0/24	AS393857	Premier Satellite	256
38.132.106.0/24	AS9009	M247 Europe SRL	256
38.109.225.0/24	AS140925	STAR INTELLITECH HK LIMITED	256
38.132.105.0/24	AS9009	M247 Europe SRL	256
38.211.235.0/24	AS273148	Smartnet Chile telecomunicaciones Ltda.	256
38.132.104.0/24	AS9009	M247 Europe SRL	256
38.129.9.0/24	AS141140	PT Jinde Grup Indonesia	256
38.134.172.0/24	AS273154	MULTICANAL LA SEÑAL DIGITAL, C.A.	256
38.135.93.0/24	AS393802	Carahsoft Technology Corp.	256
38.211.50.0/24	AS393796	GBT Communications Inc.	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
38.101.209.0/24	AS393662	TNC LEC	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
38.132.103.0/24	AS9009	M247 Europe SRL	256
38.108.119.0/24	AS273182	Cablexpress TV C.A.	256
38.101.189.0/24	AS141167	AgotoZ HK Limited	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
38.45.19.0/24	AS393632	The North Frontenac Telephone Corporation Limited	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
38.132.102.0/24	AS9009	M247 Europe SRL	256
38.211.154.0/24	AS273209		256
38.77.225.0/24	AS141167	AgotoZ HK Limited	256
38.76.4.0/24	AS14120	GTT Americas, LLC	256
38.211.60.0/24	AS273217	Alcome Tech SRL.	256
38.92.31.0/24	AS273219		256
38.132.101.0/24	AS9009	M247 Europe SRL	256
38.191.41.0/24	AS273221	Fibrazo SAS	256
38.210.108.0/24	AS273221	Fibrazo SAS	256
38.123.48.0/24	AS273224	BRAVIC.SRL	256
38.156.14.0/24	AS273224	BRAVIC.SRL	256

Hosted domains

There are 4,932,403 domain names hosted across 844,862 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
38.97.40.218	startplay.sbs	2519
38.97.40.217	jejoamos.icu	2518
38.97.40.219	desuisfaithful.top	2516
38.64.166.13	laredorealestatehomes.com	2065
38.88.82.220	focuslinkglobal.com	2057
38.45.18.203	makelogoonlinefree.com	1982
38.70.16.72	edhelper.com	1026
38.88.82.216	flatearth101.com	849
38.88.82.214	amomentintime-thebook.com	788
38.88.82.62	hobbizine.com	787
38.88.82.217	uncloakedmystics.com	737
38.190.187.101	bistrosalud.com	725
38.88.82.218	sunnionlineradio.com	719
38.88.82.215	gngpublications.com	674
38.40.244.238	hfhhjc.com	617
38.88.82.58	allaboutradiocaroline.org	579
38.63.68.228	11192.top	571
38.88.82.224	canadit.com	541
38.88.82.223	controlfreaksautomation.net	540
38.134.148.18	musikunivers.com	518

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

2,284,965 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.88.215.95	AS174 Cogent Communications, LLC	`0.24ms` from Ashburn, US
38.91.47.90	AS174 Cogent Communications, LLC	`0.22ms` from Ashburn, US
38.89.254.129	AS174 Cogent Communications, LLC	`0.20ms` from Chicago, US
38.89.79.1	AS212238 Datacamp Limited	`0.16ms` from London, GB
38.88.250.98	AS174 Cogent Communications, LLC	`1.45ms` from Los Angeles, US
38.88.236.2	AS174 Cogent Communications, LLC	`0.52ms` from New York City, US
38.89.138.105	AS40094 Southcentral Foundation	`31.05ms` from Seattle, US
38.91.45.7	AS174 Cogent Communications, LLC	`0.19ms` from Ashburn, US
38.90.136.209	AS174 Cogent Communications, LLC	`0.74ms` from Ashburn, US
38.91.54.1	AS174 Cogent Communications, LLC	`0.43ms` from Ashburn, US
38.89.252.1	AS174 Cogent Communications, LLC	`0.42ms` from Chicago, US
38.90.162.25	AS174 Cogent Communications, LLC	`0.54ms` from Chicago, US
38.91.118.12	AS9294 GNET INC.	`0.75ms` from Hong Kong, HK
38.91.116.107	AS9294 GNET INC.	`0.81ms` from Hong Kong, HK
38.91.103.1	AS174 Cogent Communications, LLC	`0.49ms` from Los Angeles, US
38.89.143.55	AS174 Cogent Communications, LLC	`2.36ms` from Miami, US
38.89.81.3	AS212238 Datacamp Limited	`0.94ms` from New York City, US
38.88.225.57	AS174 Cogent Communications, LLC	`0.08ms` from San Jose, US
38.89.93.234	AS273157 CORPORACIÓN DE COMUNICACIONES Y TELEFONÍA TURÍSTICA JUANILLO, S.A.	`3.70ms` from Santo Domingo, DO
38.89.73.1	AS212238 Datacamp Limited	`0.16ms` from London, GB
38.91.107.52	AS63023 GTHost	`0.07ms` from Miami, US
38.89.64.0	AS174 Cogent Communications, LLC	`0.93ms` from New York City, US
38.89.131.97	AS174 Cogent Communications, LLC	`1.54ms` from New York City, US
38.91.101.9	AS63023 GTHost	`0.11ms` from New York City, US
38.90.28.179	AS23114 Critical Hub Networks	`0.47ms` from San Juan, PR

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
98.27.29.152	AS11426 Charter Communications Inc	`12.17ms` from Ashburn, US
123.118.169.136	AS4808 China Unicom Beijing Province Network	`3.96ms` from Beijing, CN
179.14.215.8	AS27831 Colombia Móvil	`17.02ms` from Bogota, CO
172.176.229.104	AS8075 Microsoft Corporation	`0.29ms` from Boydton, US
84.1.48.248	AS5483 Magyar Telekom Plc.	`5.90ms` from Budapest, HU
162.205.118.136	AS7018 AT&T Enterprises, LLC	`10.08ms` from Columbus, US
34.135.84.8	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
220.200.37.24	AS4837 CHINA UNICOM China169 Backbone	`5.23ms` from Fuzhou, CN
34.50.164.88	AS396982 Google LLC	`0.13ms` from Las Vegas, US
20.90.162.184	AS8075 Microsoft Corporation	`0.30ms` from London, GB
5.101.230.120	AS15552 LLC "Real-net"	`10.51ms` from Moscow, RU
84.8.53.216	AS54253 Oracle Corporation	`6.25ms` from Muscat, OM
84.185.171.136	AS3320 Deutsche Telekom AG	`5.69ms` from Nuernberg, DE
190.83.14.104	AS269935 TAPIA FLORES OSCAR ALDO (FIBRANET ZAMORA)	`10.28ms` from Quito, EC
179.210.195.72	AS28573 Claro NXT Telecomunicacoes Ltda	`8.37ms` from Rio de Janeiro, BR
148.235.137.216	AS8151 UNINET	`10.20ms` from Santiago de Queretaro, MX
125.180.22.104	AS17858 LG POWERCOMM	`1.68ms` from Seoul, KR
182.224.198.152	AS17858 LG POWERCOMM	`2.19ms` from Seoul, KR
175.243.141.72	AS4766 Korea Telecom	`7.88ms` from Seoul, KR
103.244.235.24	AS23724 IDC, China Telecommunications Corporation	`4.79ms` from Tianjin, CN
90.134.11.136	AS1257 Tele2 Sverige AB	`17.43ms` from Vilnius, LT
188.137.74.232	AS13000 Leon Sp. z o.o.	`6.71ms` from Warsaw, PL
45.25.43.88	AS7018 AT&T Enterprises, LLC	`3.56ms` from Atlanta, US
173.30.38.40	AS30036 Mediacom Communications Corp	`11.04ms` from Chicago, US
152.36.187.216	AS398754 CoastConnect LLC	`14.45ms` from Dallas, US

Traceroute

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

traceroute -a -n -q1 -f3 38.38.64.227

traceroute to 38.38.64.227 (38.38.64.227): 64 hops max, 52 byte packets

3 [] 206.72.210.237 0.383 ms

4 *

5 *

6 [AS398823] 38.38.64.227 0.428 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On November 6th 2025

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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