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:      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:      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

Overlapping Ranges

BGP prefixes that are contained by 38.0.0.0/8

Range	ASN	Company	Num of IPs
38.110.130.0/24	AS393449	Teltrex	256
38.226.199.0/24	AS393437	ChangLian Network Technology Co.,Limited	256
38.57.187.0/24	AS14016	Capcon Networks LLC	256
38.19.110.0/24	AS273110		256
38.226.198.0/24	AS393437	ChangLian Network Technology Co.,Limited	256
38.107.250.0/24	AS393398	World Host Group US Inc.	256
38.107.221.0/24	AS393398	World Host Group US Inc.	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
38.69.235.0/24	AS393346	City National Bank	256
38.64.223.0/24	AS393339	Consilio, LLC	256
38.135.98.0/24	AS393339	Consilio, LLC	256
38.77.248.0/24	AS393294	Megatel Netcom Corporation	256
38.210.124.0/24	AS273135		256
38.102.165.0/24	AS393294	Megatel Netcom Corporation	256
38.132.114.0/24	AS9009	M247 Europe SRL	256
38.133.134.0/24	AS36833	DV Trading, LLC	256
38.132.113.0/24	AS9009	M247 Europe SRL	256
38.132.112.0/24	AS9009	M247 Europe SRL	256
38.211.235.0/24	AS273148	Smartnet Chile telecomunicaciones Ltda.	256
38.132.111.0/24	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
38.107.71.0/24	AS36776	Five9 Inc.	256
38.113.121.0/24	AS36737	PeopleFinders.com	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
38.124.160.0/24	AS36716	Morgan and Morgan, PA	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
38.132.110.0/24	AS9009	M247 Europe SRL	256
38.108.119.0/24	AS273182	Cablexpress TV C.A.	256
38.132.109.0/24	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
38.97.45.0/24	AS36671	Two Sigma Investments, LP	256
38.27.161.0/24	AS36671	Two Sigma Investments, LP	256
38.117.134.0/24	AS36671	Two Sigma Investments, LP	256
38.132.108.0/24	AS9009	M247 Europe SRL	256
38.211.154.0/24	AS273209		256
38.132.107.0/24	AS9009	M247 Europe SRL	256

Hosted domains

There are 4,863,276 domain names hosted across 840,635 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	2119
38.88.82.220	focuslinkglobal.com	2052
38.162.114.157	lwfdclvshi.cn	1385
38.162.114.171	zhangjinkun.com	1384
38.45.18.203	statistoinf.info	1286
38.70.16.72	edhelper.com	1027
38.109.251.135	youth.cn	919
38.88.82.216	flatearth101.com	848
38.88.82.62	hobbizine.com	781
38.88.82.214	dimeae.com	780
38.190.187.101	optitech-latam.net	776
38.88.82.217	alwaysgrateful.org	739
38.88.82.218	sunnionlineradio.com	716
38.88.82.215	gngpublications.com	682
38.40.244.238	jygzbjs.com	608
38.88.82.58	chowchillalionesslions.org	591
38.63.68.228	hncyw.top	563
38.88.82.223	secondshowingconsignment.com	530
38.88.82.224	ghpltd.uk	522
38.47.222.160	0fivli.cfd	514

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

2,646,247 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.92.54.1	AS174 Cogent Communications, LLC	`1.16ms` from Ashburn, US
38.91.58.232	AS32181 GigeNET	`0.15ms` from Chicago, US
38.92.88.1	AS19746 Marshall Municipal Utilities	`6.24ms` from Kansas City, US
38.91.97.10	AS174 Cogent Communications, LLC	`0.30ms` from Los Angeles, US
38.92.26.29	AS26042 FiberState, LLC	`0.14ms` from Los Angeles, US
38.92.117.1	AS174 Cogent Communications, LLC	`22.14ms` from Miami, US
38.92.66.1	AS174 Cogent Communications, LLC	`0.20ms` from San Jose, US
38.92.70.1	AS398704 STACKS INC	`0.23ms` from San Jose, US
38.92.72.4	AS137182 BLUE WIRELESS PTE LTD	`0.48ms` from Amsterdam, NL
38.91.45.7	AS174 Cogent Communications, LLC	`0.21ms` from Ashburn, US
38.91.47.81	AS174 Cogent Communications, LLC	`0.22ms` from Ashburn, US
38.89.251.2	AS174 Cogent Communications, LLC	`0.77ms` from Chicago, US
38.92.81.33	AS174 Cogent Communications, LLC	`10.04ms` from Dallas, US
38.92.0.1	AS393737 Cpuonsite	`19.06ms` from Dallas, US
38.92.94.1	AS19746 Marshall Municipal Utilities	`6.16ms` from Kansas City, US
38.92.27.70	AS26042 FiberState, LLC	`0.15ms` from Los Angeles, US
38.91.120.9	AS33313 Crown Castle Fiber LLC	`0.39ms` from Los Angeles, US
38.91.125.241	AS33313 Crown Castle Fiber LLC	`0.41ms` from Los Angeles, US
38.92.71.0	AS398704 STACKS INC	`0.39ms` from San Jose, US
38.91.60.1	AS398371 OCBA	`1.98ms` from Ashburn, US
38.92.41.106	AS397423 Tier.Net Technologies LLC	`32.05ms` from Chicago, US
38.92.24.209	AS26042 FiberState, LLC	`0.10ms` from Draper, US
38.91.114.86	AS9294 GNET INC.	`0.76ms` from Hong Kong, HK
38.92.132.252	AS27029 Primex	`0.28ms` from Minneapolis, US
38.90.96.81	AS36131 PageBites, Inc.	`0.65ms` from Santa Clara, 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
177.66.162.136	AS262500 BS2 Sistemas para Internet Ltda.	`0.66ms` from Curitiba, BR
84.163.61.88	AS3320 Deutsche Telekom AG	`2.54ms` from Frankfurt am Main, DE
90.249.219.248	AS5378 Vodafone Limited	`7.04ms` from London, GB
180.33.88.120	AS4713 NTT DOCOMO BUSINESS,Inc.	`3.62ms` from Osaka, JP
1.42.173.200	AS4804 Microplex PTY LTD	`2.03ms` from Perth, AU
3.237.80.56	AS14618 Amazon.com, Inc.	`0.18ms` from Reston, US
37.117.193.104	AS30722 Vodafone Italia S.p.A.	`4.31ms` from Rome, IT
109.67.65.120	AS8551 Bezeq International Ltd.	`1.34ms` from Tel Aviv, IL
83.24.126.168	AS5617 Orange Polska Spolka Akcyjna	`2.48ms` from Warsaw, PL
185.24.220.72	AS196752 Tilaa B.V.	`0.98ms` from Amsterdam, NL
54.190.88.184	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
54.229.26.152	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
91.22.100.168	AS3320 Deutsche Telekom AG	`6.36ms` from Frankfurt am Main, DE
119.180.74.88	AS4837 CHINA UNICOM China169 Backbone	`10.47ms` from Jinan, CN
190.102.150.104	AS27843 WIN EMPRESAS S.A.C.	`0.29ms` from Lima, PE
86.153.104.8	AS2856 British Telecommunications PLC	`4.97ms` from London, GB
84.189.6.232	AS3320 Deutsche Telekom AG	`7.63ms` from Nuernberg, DE
180.43.106.152	AS4713 NTT DOCOMO BUSINESS,Inc.	`11.45ms` from Osaka, JP
193.242.46.40	AS21033 ESSILOR International SAS	`1.67ms` from Paris, FR
5.8.54.24	AS34665 Petersburg Internet Network ltd.	`0.39ms` from Saint Petersburg, RU
73.184.151.168	AS7922 Comcast Cable Communications, LLC	`4.22ms` from Atlanta, US
67.173.50.216	AS7922 Comcast Cable Communications, LLC	`5.67ms` from Chicago, US
125.122.65.184	AS4134 CHINANET-BACKBONE	`5.28ms` from Hangzhou, CN
121.233.199.248	AS4134 CHINANET-BACKBONE	`5.47ms` from Huai'an, CN
181.135.198.72	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.44ms` from Medellin, CO

Traceroute

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

traceroute -a -n -q1 -f2 38.81.215.1

traceroute to 38.81.215.1 (38.81.215.1): 64 hops max, 52 byte packets

2 [AS6424] 193.109.190.156 0.11 ms

3 *

4 *

5 *

6 *

7 [AS6939] 216.66.30.111 89.117 ms

8 *

9 [AS12183] 38.81.215.1 135.017 ms

Measurement taken from

IPinfo ProbeNet in Lisbon, PT

On December 6th 2025

What are IP address ranges?

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