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:        [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


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

Overlapping Ranges

BGP prefixes that are contained by 38.0.0.0/8

Range	ASN	Company	Num of IPs
38.100.105.0/24	AS400810	BreezeHost	256
38.100.105.0/24	AS400810	BreezeHost	256
38.83.101.0/24	AS400733	Pari Data Systems Inc	256
38.114.111.0/24	AS400733	Pari Data Systems Inc	256
38.66.87.0/24	AS33257	White Label Communications LLC	256
38.86.232.0/24	AS12243	Waddell Solutions LLC	256
38.244.159.0/24	AS58061	3NT SOLUTIONS LLP	256
38.244.158.0/24	AS58061	3NT SOLUTIONS LLP	256
38.82.195.0/24	AS33313	Crown Castle Fiber LLC	256
38.246.126.0/24	AS1008	Ganjingworld Corporation	256
38.224.253.0/24	AS33335	Heaviside Hosting, LLC	256
38.107.149.0/24	AS33345	Sierra Experts	256
38.107.151.0/24	AS33345	Sierra Experts	256
38.111.23.0/24	AS14705	ROXBURY COMMUNITY COLLEGE	256
38.225.210.0/24	AS33426	PeopleFluent	256
38.70.19.0/24	AS400704	NewConnect, LLC	256
38.100.211.0/24	AS33509	Cascade Access, LLC	256
38.126.70.0/24	AS33509	Cascade Access, LLC	256
38.126.73.0/24	AS33509	Cascade Access, LLC	256
38.98.153.0/24	AS33540	Alzheimer's Disease and Related Disorders Association Inc	256
38.159.181.0/24	AS3356		256
38.81.103.0/24	AS33570	Cloudpath	256
38.96.198.0/24	AS33570	Cloudpath	256
38.103.23.0/24	AS33577	Radio Free Asia	256
38.97.57.0/24	AS33587	Breckinridge Capital Advisors	256
38.147.139.0/24	AS33599	Reliable Reports	256
38.52.146.0/24	AS147159	PT BEIBI CEMERLANG INDONESIA	256
38.244.143.0/24	AS58061	3NT SOLUTIONS LLP	256
38.70.1.0/24	AS400704	NewConnect, LLC	256
38.124.242.0/24	AS400704	NewConnect, LLC	256
38.100.63.0/24	AS400704	NewConnect, LLC	256
38.130.158.0/24	AS33623	Hayneville Telephone Company	256
38.130.159.0/24	AS33623	Hayneville Telephone Company	256
38.106.32.0/24	AS1286	Altay Corporation	256
38.100.193.0/24	AS33724	Biznesshosting, Inc.	256
38.100.197.0/24	AS33724	Biznesshosting, Inc.	256
38.117.23.0/24	AS33724	Biznesshosting, Inc.	256
38.100.10.0/24	AS400704	NewConnect, LLC	256
38.115.62.0/24	AS34	University of Delaware	256
38.253.72.0/24	AS400699	KitsapWiFi	256
38.180.10.0/24	AS34702	3NT SOLUTIONS LLP	256
38.180.163.0/24	AS34702	3NT SOLUTIONS LLP	256
38.180.164.0/24	AS34702	3NT SOLUTIONS LLP	256
38.180.216.0/24	AS34702	3NT SOLUTIONS LLP	256
38.180.230.0/24	AS34702	3NT SOLUTIONS LLP	256
38.180.248.0/24	AS34702	3NT SOLUTIONS LLP	256
38.244.154.0/24	AS34702	3NT SOLUTIONS LLP	256
38.244.155.0/24	AS34702	3NT SOLUTIONS LLP	256
38.57.106.0/24	AS34756	NEP, Supershooters, LLC. d.b.a. VISTA Worldlink	256
38.93.213.0/24	AS35142	Better Linx Ltd	256

Hosted domains

There are 4,923,165 domain names hosted across 837,896 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	managedcareinsurance.com	2080
38.88.82.220	focuslinkglobal.com	2054
38.87.69.2	haohaocai.com	1443
38.45.18.203	infoinvest.click	1356
38.70.16.72	edhelper.com	1026
38.88.82.216	flatearth101.com	850
38.88.82.62	hobbizine.com	784
38.88.82.214	candifoxauthor.com	784
38.190.187.101	venezuelaassinaweb.com.br	736
38.88.82.217	maggiebagz.com	736
38.88.82.218	sunnionlineradio.com	711
38.88.82.215	gngpublications.com	681
38.40.244.238	kuaidianyou.net	611
38.88.82.58	yesterpedia.org	586
38.63.68.228	bvka.top	564
38.88.82.223	rajkotphysio.com	535
38.88.82.224	maid-men.com	527
38.47.222.160	ow6ae0.cfd	514
38.134.148.18	inreblog.com	500

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

2,667,792 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.34.99.51	AS395354 Starry, Inc.	`11.08ms` from Denver, US
38.35.157.3	AS270236 OPTOENLACES S.A. DE C.V.	`2.76ms` from Guadalajara, MX
38.34.236.2	AS30444 Ocala Fiber Network	`8.14ms` from Miami, US
38.34.243.60	AS30444 Ocala Fiber Network	`8.22ms` from Miami, US
38.34.244.243	AS30444 Ocala Fiber Network	`8.12ms` from Miami, US
38.35.156.2	AS270236 OPTOENLACES S.A. DE C.V.	`20.71ms` from Monterrey, MX
38.35.143.15	AS265509 OPTOENLACES S.A. DE C.V.	`4.43ms` from Santiago de Querétaro, MX
38.35.16.65	AS25668 Cipherkey Exchange Corp.	`6.36ms` from Toronto, CA
38.35.21.1	AS25668 Cipherkey Exchange Corp.	`3.50ms` from Toronto, CA
38.35.29.129	AS25668 Cipherkey Exchange Corp.	`1.47ms` from Toronto, CA
38.35.10.225	AS25668 Cipherkey Exchange Corp.	`1.67ms` from Toronto, CA
38.34.108.1	AS395354 Starry, Inc.	`0.72ms` from Ashburn, US
38.34.222.1	AS174 Cogent Communications, LLC	`9.02ms` from Dallas, US
38.34.197.1	AS174 Cogent Communications, LLC	`9.07ms` from Dallas, US
38.34.176.116	AS18978 Enzu Inc	`0.81ms` from Detroit, US
38.34.162.185	AS18978 Enzu Inc	`0.66ms` from Los Angeles, US
38.34.225.218	AS30444 Ocala Fiber Network	`8.84ms` from Miami, US
38.34.241.1	AS30444 Ocala Fiber Network	`8.21ms` from Miami, US
38.35.153.233	AS265509 OPTOENLACES S.A. DE C.V.	`4.56ms` from Santiago de Querétaro, MX
38.35.245.131	AS265509 OPTOENLACES S.A. DE C.V.	`5.82ms` from Santiago de Querétaro, MX
38.35.24.65	AS25668 Cipherkey Exchange Corp.	`3.57ms` from Toronto, CA
38.35.26.97	AS25668 Cipherkey Exchange Corp.	`4.71ms` from Toronto, CA
38.35.12.97	AS25668 Cipherkey Exchange Corp.	`1.50ms` from Toronto, CA
38.34.84.193	AS25668 Cipherkey Exchange Corp.	`0.79ms` from Vancouver, CA
38.34.65.65	AS25668 Cipherkey Exchange Corp.	`0.71ms` from Vancouver, CA

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
77.165.176.88	AS1136 KPN B.V.	`1.84ms` from Amsterdam, NL
190.49.7.120	AS22927 Telefonica de Argentina	`1.69ms` from Buenos Aires, AR
63.133.208.72	AS35860 Imagine Networks	`11.90ms` from Columbus, US
109.79.79.104	AS15502 Vodafone Ireland Limited	`7.28ms` from Dublin, IE
24.29.236.72	AS10796 Charter Communications Inc	`10.63ms` from Flint, US
217.66.11.152	AS16294 Descartes Systems (Belgium) NV	`7.70ms` from Frankfurt am Main, DE
192.152.28.104	AS54548 IONOS Cloud Inc.	`2.14ms` from Las Vegas, US
128.49.36.88	AS22 Navy Network Information Center (NNIC)	`1.75ms` from Los Angeles, US
187.194.3.72	AS8151 UNINET	`19.68ms` from Los Angeles, US
197.14.137.88	AS2609 Tunisia BackBone AS	`16.13ms` from Palermo, IT
87.26.87.216	AS3269 Telecom Italia S.p.A.	`2.49ms` from Rome, IT
3.39.104.40	AS16509 Amazon.com, Inc.	`0.21ms` from Seoul, KR
183.148.134.56	AS4134 CHINANET-BACKBONE	`11.23ms` from Shanghai, CN
116.70.154.216	AS4721 JCOM Co., Ltd.	`12.57ms` from Tokyo, JP
77.175.155.104	AS1136 KPN B.V.	`1.46ms` from Amsterdam, NL
181.127.215.8	AS23201 Telecel S.A.	`9.57ms` from Asuncion, PY
59.88.44.40	AS9829 National Internet Backbone	`13.62ms` from Bengaluru, IN
84.60.179.88	AS3209 Vodafone GmbH	`6.32ms` from Berlin, DE
103.161.233.24	AS133647 ELXIRE DATA SERVICES PVT. LTD.	`1.63ms` from Delhi, IN
54.217.247.8	AS16509 Amazon.com, Inc.	`0.18ms` from Dublin, IE
35.159.161.216	AS16509 Amazon.com, Inc.	`0.14ms` from Frankfurt am Main, DE
87.165.246.8	AS3320 Deutsche Telekom AG	`8.19ms` from Frankfurt am Main, DE
181.131.128.136	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`10.57ms` from Medellin, CO
79.32.27.88	AS3269 Telecom Italia S.p.A.	`6.88ms` from Milan, IT
174.114.185.168	AS812 Rogers Communications Canada Inc.	`6.84ms` from Montreal, CA

Traceroute

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

traceroute -a -n -q1 -f5 38.121.197.195

traceroute to 38.121.197.195 (38.121.197.195): 64 hops max, 52 byte packets

5 [] 195.42.144.104 15.806 ms

6 *

7 *

8 [AS6939] 72.52.92.14 87.149 ms

9 [AS6939] 184.104.198.94 87.536 ms

10 [AS6939] 216.66.37.247 94.916 ms

11 *

12 [AS63104] 38.121.197.195 100.076 ms

Measurement taken from

IPinfo ProbeNet in Paris, FR

On November 28th 2025

What are IP address ranges?

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