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
38.114.205.0/24	AS396107	Opiquad, LLC	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
38.105.166.0/24	AS11903	Lincolnshire Management Inc	256
38.105.136.0/24	AS12157	Element Capital	256
38.102.25.0/24	AS12183	Talkie Communications Inc.	256
38.124.143.0/24	AS12183	Talkie Communications Inc.	256
38.101.69.0/24	AS12243	Waddell Solutions LLC	256
38.75.195.0/24	AS12243	Waddell Solutions LLC	256
38.86.232.0/24	AS12243	Waddell Solutions LLC	256
38.106.32.0/24	AS1286	Altay Corporation	256
38.106.33.0/24	AS1286	Altay Corporation	256
38.106.7.0/24	AS1286	Altay Corporation	256
38.74.136.0/24	AS1286	Altay Corporation	256
38.98.53.0/24	AS1286	Altay Corporation	256
38.99.250.0/24	AS1286	Altay Corporation	256
38.247.67.0/24	AS131274	Cypress Telecom Limited / CypressTel	256
38.106.60.0/24	AS131917	Toshiba I.S. Corporation	256
38.58.109.0/24	AS132139		256
38.102.78.0/24	AS132641	ServerMania Inc.	256
38.102.79.0/24	AS132641	ServerMania Inc.	256
38.130.252.0/24	AS132925	Ideastack Solutions Private Limited	256
38.130.157.0/24	AS133041	Tianxin Group Ltd	256
38.111.206.0/24	AS174	SlashNext, Inc.	256
38.111.207.0/24	AS174	City of Long Beach, Harbor Department	256
38.111.219.0/24	AS174	KAOPU CLOUD HK LIMITED	256
38.111.248.0/24	AS174	1547 CSR-South Bend, LLC	256
38.111.252.0/24	AS174	enFocus	256
38.111.56.0/24	AS174	Cisco Systems Inc	256
38.111.61.0/24	AS174	Guang Xun Yong Yao Limited	256

Hosted domains

There are 4,814,244 domain names hosted across 830,154 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
38.207.125.245	qpf6gpu.top	5231
38.64.166.13	laredorealestatehomes.com	2092
38.88.82.220	focuslinkglobal.com	1991
38.45.18.203	merecinema.com	1125
38.70.16.72	edhelper.com	1030
38.88.82.216	flatearth101.com	843
38.46.11.99	fca79.skin	810
38.88.82.62	hobbizine.com	787
38.190.187.101	healthandwellnesss.us	776
38.88.82.214	uhoopusa.com	761
38.88.82.217	theinterrogatorsnotebook.com	735
38.88.82.218	sunnionlineradio.com	712
38.88.82.215	gngpublications.com	681
38.40.244.238	startingpointsports.com	604
38.88.82.58	yesterlibrary.com	587
38.207.122.163	v5hiphop.bet	564
38.63.68.228	pyyck.top	559
38.88.82.223	kumarrajendran.in	516
38.88.82.224	marktwainawarhero.com	515
38.47.222.160	ratjwb.top	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

2,510,458 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.89.66.0	AS174 Cogent Communications, LLC	`2.17ms` from Ashburn, US
38.88.232.49	AS174 Cogent Communications, LLC	`0.63ms` from Atlanta, US
38.89.253.3	AS174 Cogent Communications, LLC	`0.39ms` from Chicago, US
38.88.203.234	AS174 Cogent Communications, LLC	`0.19ms` from Chicago, US
38.90.8.37	AS138571 SUPERCLOUDS LIMITED	`1.42ms` from Hong Kong, HK
38.88.179.170	AS174 Cogent Communications, LLC	`0.40ms` from Los Angeles, US
38.88.236.2	AS174 Cogent Communications, LLC	`0.51ms` from New York City, US
38.88.211.58	AS174 Cogent Communications, LLC	`0.47ms` from New York City, US
38.88.183.42	AS174 Cogent Communications, LLC	`0.51ms` from New York City, US
38.89.135.80	AS174 Cogent Communications, LLC	`0.70ms` from New York City, US
38.89.87.2	AS212238 Datacamp Limited	`0.99ms` from New York City, US
38.89.128.24	AS394034 Brooklyn Fiber	`0.46ms` from New York City, US
38.89.155.108	AS398816 Flume	`0.74ms` from New York City, US
38.88.132.17	AS174 Cogent Communications, LLC	`2.34ms` from Ashburn, US
38.91.63.246	AS396168 ThinkBig Networks, LLC	`5.10ms` from Ashburn, US
38.88.180.25	AS174 Cogent Communications, LLC	`0.80ms` from Boca Raton, US
38.88.213.241	AS174 Cogent Communications, LLC	`1.03ms` from Chicago, US
38.89.76.1	AS212238 Datacamp Limited	`0.17ms` from London, GB
38.88.197.201	AS174 Cogent Communications, LLC	`0.27ms` from Los Angeles, US
38.90.18.82	AS40564 VOCOM International Telecommunication, INC.	`0.18ms` from Los Angeles, US
38.89.81.2	AS212238 Datacamp Limited	`0.94ms` from New York City, US
38.89.234.243	AS174 Cogent Communications, LLC	`0.27ms` from Seattle, US
38.88.240.26	AS174 Cogent Communications, LLC	`0.20ms` from Toronto, CA
38.89.89.130	AS174 Cogent Communications, LLC	`0.60ms` from Chicago, US
38.88.192.1	AS174 Cogent Communications, LLC	`2.27ms` from Columbus, 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
2.132.35.72	AS9198 JSC Kazakhtelecom	`2.15ms` from Almaty, KZ
172.201.196.152	AS8075 Microsoft Corporation	`0.28ms` from Amsterdam, NL
210.221.60.40	AS9318 SK Broadband Co Ltd	`1.61ms` from Incheon, KR
79.144.144.104	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.65ms` from Madrid, ES
2.40.227.232	AS30722 Vodafone Italia S.p.A.	`15.60ms` from Milan, IT
65.128.103.200	AS209 CenturyLink Communications, LLC	`0.82ms` from Minneapolis, US
217.217.105.152	AS20326 TeraSwitch Networks Inc.	`1.03ms` from New York City, US
131.100.177.8	AS61648 PLAYIP TELECOM LTDA.	`1.91ms` from Osasco, BR
176.185.156.104	AS5410 Bouygues Telecom SA	`1.77ms` from Paris, FR
119.165.8.24	AS4837 CHINA UNICOM China169 Backbone	`1.11ms` from Qingdao, CN
54.87.245.200	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US
184.73.243.136	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
172.202.135.232	AS8075 Microsoft Corporation	`0.24ms` from San Antonio, US
195.198.199.24	AS3301 Telia Company AB	`1.19ms` from Stockholm, SE
109.177.225.200	AS5384 Emirates Internet	`3.33ms` from Al Fujairah City, AE
5.198.242.56	AS9038 Al Bahrainia al Urdunia Liltaknia Wa Alitisalat Plc. Co	`19.55ms` from Amman, JO
150.125.77.104	AS668 United States Department of Defense (DoD)	`0.59ms` from Atlanta, US
202.44.11.184	AS9551 King Mongkut's University of Technology	`1.68ms` from Bangkok, TH
58.6.126.216	AS4739 Internode Pty Ltd	`3.74ms` from Brisbane, AU
91.55.51.24	AS3320 Deutsche Telekom AG	`4.92ms` from Frankfurt am Main, DE
18.60.8.120	AS16509 Amazon.com, Inc.	`1.23ms` from Hyderabad, IN
35.183.111.152	AS16509 Amazon.com, Inc.	`0.13ms` from Montreal, CA
188.32.236.40	AS42610 PJSC Rostelecom	`1.19ms` from Moscow, RU
4.149.236.72	AS8075 Microsoft Corporation	`0.44ms` from Quincy, US
3.237.80.56	AS14618 Amazon.com, Inc.	`0.19ms` from Reston, US

Traceroute

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

traceroute -a -n -q1 -f5 -m10 38.27.189.13

traceroute to 38.27.189.13 (38.27.189.13): 10 hops max, 52 byte packets

5 [AS174] 66.28.4.193 2.08 ms

6 [AS174] 154.54.165.133 10.417 ms

7 [AS174] 154.54.7.233 22.827 ms

8 *

9 *

10 *

Measurement taken from

IPinfo ProbeNet in Chicago, US

On January 19th 2026

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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