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
38.7.137.0/24	AS272112	Believe Comunications srl	256
38.7.138.0/24	AS272387	WAVES LINKS SERVICIOS DE COMUNICACIONES E INFORMATICA S.A.S. DE C.V.	256
38.7.139.0/24	AS215423	FIFTH GENERTION NEW AGE LTD	256
38.71.42.0/24	AS22131	Reach Fiber Networks, LLC	256
38.7.144.0/24	AS328611	Libyan Elite	256
38.71.47.0/24	AS137816	Cloud Net Technologies Limited	256
38.81.110.0/24	AS22742	Connecticut Technical Education and Career System	256
38.105.66.0/24	AS174	American Farm Bureau Federation	256
38.105.69.0/24	AS174	National Media Inc	256
38.71.70.0/24	AS11586	Johnson Outdoors Inc.	256
38.71.7.0/24	AS32696	Affiliated Technology Solutions, LLC	256
38.71.71.0/24	AS174	M3 Technology Management	256
38.71.8.0/24	AS174	Phoenix Infrastructure LLC	256
38.105.7.0/24	AS11457	Digital Realty Trust	256
38.81.109.0/24	AS22742	City of Bridgeport	256
38.105.77.0/24	AS174	The Washington Post Company	256
38.72.106.0/24	AS174	RooR, Inc	256
38.72.109.0/24	AS174	RooR, Inc	256
38.72.118.0/24	AS174	Civanonet LLC	256
38.72.121.0/24	AS174	New Horizons Technologies, LLC	256
38.72.126.0/24	AS174	Aurelius Solutions, LLC	256
38.72.129.0/24	AS174	WFG Title Insurance Company	256
38.72.130.0/24	AS174	NCSi Inc	256
38.72.131.0/24	AS174	Zenlayer Inc	256
38.72.132.0/24	AS63023	GLOBALTELEHOST CORP.	256
38.72.142.0/24	AS174	Zenlayer Inc	256
38.72.143.0/24	AS174	Zenlayer Inc	256
38.72.152.0/24	AS174	Zenlayer Inc	256
38.72.157.0/24	AS174	Zenlayer Inc	256
38.72.159.0/24	AS395111	KVC Hosting	256
38.105.78.0/24	AS174	Lantern Technology LLC	256
38.105.79.0/24	AS174	DENPRO	256
38.72.195.0/24	AS174	Wavestreet	256
38.81.107.0/24	AS395748	Netspeed Communications	256
38.105.90.0/24	AS16633	N-able Cloud GmbH	256
38.72.76.0/24	AS54620	Generic Networks Systems	256
38.105.9.0/24	AS174	Globaltech Network Systems LLC	256
38.105.94.0/24	AS174	FEDERAL RESERVE BOARD	256
38.73.129.0/24	AS17209	HMH Education Company	256
38.73.192.0/24	AS174	Paychex Corporation	256
38.81.105.0/24	AS174	Nanjing Haojun Information Service Co., Ltd.	256
38.73.225.0/24	AS395717	Wasabi Technologies LLC	256
38.73.227.0/24	AS63071	STAFFORD COUNTY PUBLIC SCHOOLS	256
38.73.233.0/24	AS63071	STAFFORD COUNTY PUBLIC SCHOOLS	256
38.73.236.0/24	AS174	K12 Insight	256
38.73.238.0/24	AS174	KAOPU CLOUD HK LIMITED	256
38.81.103.0/24	AS33570	Cloudpath	256
38.81.101.0/24	AS395748	Netspeed Communications	256
38.73.96.0/24	AS174	Calview Netlink, Inc.	256
38.74.136.0/24	AS1286	Altay Corporation	256

Hosted domains

There are 4,955,645 domain names hosted across 852,318 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
38.45.18.203	makelogoonlinefree.com	2718
38.45.65.152	instantnofaxpayday.com	2080
38.88.82.220	focuslinkglobal.com	2062
38.64.166.13	laredorealestatehomes.com	2055
38.70.16.72	edhelper.com	1027
38.88.82.216	flatearth101.com	859
38.88.82.62	hobbizine.com	797
38.88.82.214	clinthillery.com	789
38.88.82.217	bleacherbumband.com	740
38.190.187.101	sabasfit.com	731
38.45.18.201	basecent.com	727
38.88.82.218	sunnionlineradio.com	720
38.88.82.215	gngpublications.com	682
38.40.244.238	hotelsanskar.com	619
38.45.18.202	hotelboquete.com	612
38.63.68.228	zhangdanc.top	573
38.88.82.58	contentswithincontext.com	573
38.88.82.223	greatsoutherntruckmounts.com	540
38.88.82.224	l-ecs.com	537
38.47.222.160	wguig.top	515

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

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Pingable IPs

2,588,595 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.7.149.1	AS205423 CONNEXIONS SAL-HOLDING	`2.69ms` from Beirut, LB
38.7.176.1	AS136384 Optix Pakistan (Pvt.) Limited	`5.87ms` from Islamabad, PK
38.7.175.131	AS136384 Optix Pakistan (Pvt.) Limited	`3.35ms` from Karachi, PK
38.9.119.210	AS264582 URUPESNET PROVEDOR DE INTERNET LTDA ME	`7.37ms` from Osasco, BR
38.7.228.77	AS268205 Rede Brasil Networks	`3.44ms` from Osasco, BR
38.9.238.1	AS54936 Wyyerd Group	`2.85ms` from Phoenix, US
38.7.202.1	AS263702 GRUPO ZGH SPA	`0.12ms` from Santiago, CL
38.10.36.65	AS32204 KPU Telecommunications	`23.58ms` from Vancouver, CA
38.9.53.168	AS271941 NUÑEZ DE LA ROSA RICHARD DALTON (ECONTEL ECUADOR)	`1.92ms` from Guayaquil, EC
38.7.160.1	AS136384 Optix Pakistan (Pvt.) Limited	`17.97ms` from Karachi, PK
38.9.149.0	AS23679 PT. Media Antar Nusa	`0.36ms` from Medan, ID
38.9.160.254	AS271899 GIGAPOP, C.A.	`31.80ms` from Miami, US
38.9.62.253	AS17426 Primesoftex Ltd	`2.99ms` from Mumbai, IN
38.9.232.3	AS54936 Wyyerd Group	`2.60ms` from Phoenix, US
38.9.247.35	AS54936 Wyyerd Group	`1.78ms` from Phoenix, US
38.7.205.1	AS263702 GRUPO ZGH SPA	`0.16ms` from Santiago, CL
38.10.32.231	AS32204 KPU Telecommunications	`23.52ms` from Seattle, US
38.10.35.193	AS32204 KPU Telecommunications	`24.05ms` from Seattle, US
38.10.61.1	AS32204 KPU Telecommunications	`24.45ms` from Seattle, US
38.9.54.17	AS272573 Br Conect Telecomunicacoes Eireli	`0.94ms` from São Paulo, BR
38.7.133.1	AS31843 Arx Technologies	`12.60ms` from Ashburn, US
38.7.157.94	AS399622 Wireless Data Net, LLC	`4.63ms` from Chicago, US
38.10.68.2	AS208972 GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI	`9.22ms` from Istanbul, TR
38.7.178.1	AS136384 Optix Pakistan (Pvt.) Limited	`1.31ms` from Karachi, PK
38.9.8.2	AS207645 F & W Networks Ltd	`0.16ms` from London, GB

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
73.236.120.232	AS7922 Comcast Cable Communications, LLC	`10.56ms` from Ashburn, US
193.58.40.200	AS6848 Telenet BV	`3.71ms` from Brussels, BE
52.15.101.88	AS16509 Amazon.com, Inc.	`0.14ms` from Columbus, US
18.254.149.40	AS8987 Amazon Data Services Ireland Ltd	`1.21ms` from Columbus, US
79.240.60.152	AS3320 Deutsche Telekom AG	`9.58ms` from Frankfurt am Main, DE
83.104.154.120	AS5378 Vodafone Limited	`8.57ms` from London, GB
45.9.37.200	AS209023 JOSE LAGO ALVAREZ	`12.67ms` from Madrid, ES
151.84.154.152	AS1267 WIND TRE S.P.A.	`3.47ms` from Milan, IT
37.103.27.104	AS1267 WIND TRE S.P.A.	`4.64ms` from Milan, IT
84.8.53.216	AS54253 Oracle Corporation	`6.25ms` from Muscat, OM
60.32.172.72	AS4713 NTT Communications Corporation	`3.95ms` from Osaka, JP
100.19.146.56	AS701 Verizon Business	`0.94ms` from Philadelphia, US
188.22.178.248	AS8447 A1 Telekom Austria AG	`0.57ms` from Vienna, AT
3.16.15.152	AS16509 Amazon.com, Inc.	`0.95ms` from Columbus, US
139.6.31.40	AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.	`11.49ms` from Duesseldorf, DE
93.198.222.168	AS3320 Deutsche Telekom AG	`7.47ms` from Frankfurt am Main, DE
31.42.70.88	AS29688 Vostok Ltd.	`4.54ms` from Kyiv, UA
62.42.134.8	AS6739 VODAFONE ONO, S.A.	`10.67ms` from Madrid, ES
68.197.206.200	AS6128 Cablevision Systems Corp.	`2.23ms` from New York City, US
5.136.20.120	AS12389 PJSC Rostelecom	`10.42ms` from Novosibirsk, RU
123.221.51.136	AS4713 NTT Communications Corporation	`3.65ms` from Osaka, JP
193.242.46.40	AS21033 ESSILOR International SAS	`1.66ms` from Paris, FR
151.26.119.200	AS1267 WIND TRE S.P.A.	`17.93ms` from Rende, IT
49.170.76.56	AS17858 LG POWERCOMM	`2.97ms` from Seoul, KR
195.198.199.24	AS3301 Telia Company AB	`1.19ms` from Stockholm, SE

Traceroute

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

traceroute -a -n -q1 -f4 38.104.168.233

traceroute to 38.104.168.233 (38.104.168.233): 64 hops max, 52 byte packets

4 [AS36236] 104.225.2.190 0.639 ms

5 *

6 [AS174] 154.24.54.173 2.448 ms

7 [AS174] 38.104.168.233 1.981 ms

Measurement taken from

IPinfo ProbeNet in Durham, US

On September 25th 2025

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