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:      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:      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:      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
38.100.173.0/24	AS174	Muratek	256
38.100.178.0/24	AS397655	Netsmart Technologies	256
38.100.180.0/24	AS174	Lantern Technology LLC	256
38.100.18.0/24	AS19316	Quadrangle Development Corporation	256
38.100.182.0/24	AS399206	ACS / Associated Computer Systems LTD	256
38.100.183.0/24	AS174	NBH Bank	256
38.100.193.0/24	AS33724	Biznesshosting, Inc.	256
38.100.197.0/24	AS33724	Biznesshosting, Inc.	256
38.100.200.0/24	AS14786	All Access Telecom, Inc.	256
38.100.201.0/24	AS174	Hongkong Seaga Technology Limited	256
38.100.209.0/24	AS401063	Coltontel	256
38.100.21.0/24	AS396989	LookingGlass Cyber Solutions, Inc.	256
38.100.211.0/24	AS33509	Cascade Access, LLC	256
38.100.215.0/24	AS174	Playnet, Inc.	256
38.100.22.0/24	AS20075	Radio Free Europe / Radio Liberty	256
38.100.230.0/24	AS174	Zenlayer Inc	256
38.100.250.0/24	AS55140	Sho Me Technologies, LLC	256
38.100.252.0/24	AS174	TierPoint, LLC	256
38.100.28.0/24	AS394957	Zadara Storage Inc.	256
38.100.30.0/24	AS12160	Keller and Heckman LLP	256
38.100.32.0/24	AS174	Zadara Storage Inc.	256
38.100.33.0/24	AS35864	American Public Education	256
38.100.39.0/24	AS174	Shenzhen Meiyuan Qiyue Technology Co., Ltd	256
38.100.4.0/24	AS174	TCB Inc.	256
38.100.48.0/24	AS63261	Graham Holdings Company	256
38.100.51.0/24	AS174	Compu-tecture, Inc.	256
38.100.61.0/24	AS32565	American Federation of State, County and Municipal Employees	256
38.100.63.0/24	AS400704	NewConnect, LLC	256
38.100.72.0/24	AS19754	The Fusion Network, LLC	256
38.100.74.0/24	AS19754	SCT Broadband	256
38.100.76.0/24	AS19754	SCT Broadband	256
38.100.81.0/24	AS396107	RTA America, Inc., a Texas corporation	256
38.100.87.0/24	AS19754	The Fusion Network, LLC	256
38.100.89.0/24	AS19754	The Fusion Network, LLC	256
38.10.102.0/24	AS272823	SILVA CORRALES DANIEL FERNANDO	256
38.10.103.0/24	AS264962	VOLTEC SERVICO DE AUTOMACAO TELECOM	256
38.101.101.0/24	AS36340	Buckeye Cablevision, Inc.	256
38.101.108.0/24	AS53316	Marigold USA, Inc.	256
38.101.112.0/24	AS208621	LogicForge	256
38.101.113.0/24	AS19740	Link Secured Networks	256
38.101.115.0/24	AS174	Artemis 1 LLC	256
38.101.116.0/24	AS174	Hongkong Seaga Technology Limited	256
38.101.120.0/24	AS174	SuperCloud International, Inc.	256
38.101.122.0/24	AS174	MR Networking, SRL	256
38.101.123.0/24	AS174	J2 Lab	256
38.101.124.0/24	AS174	Tech Hero	256
38.101.128.0/24	AS174	M3 USA Corporation	256
38.101.135.0/24	AS14725	Crawford & Company	256
38.101.138.0/24	AS395748	Netspeed Communications	256
38.101.139.0/24	AS395748	Netspeed Communications	256

Hosted domains

There are 4,978,366 domain names hosted across 849,985 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
38.97.40.217	verdetran.sbs	2520
38.97.40.218	stelafast.pro	2520
38.97.40.219	plustv02.icu	2519
38.45.18.203	makelogoonlinefree.com	2488
38.45.65.152	austinexpo.com	2080
38.64.166.13	laredorealestatehomes.com	2070
38.88.82.220	focuslinkglobal.com	2060
38.70.16.72	edhelper.com	1027
38.88.82.216	flatearth101.com	858
38.88.82.62	hobbizine.com	790
38.88.82.214	pacificroadgroup.com	789
38.88.82.217	the-electronic-closet.com	741
38.190.187.101	creoweb.cl	731
38.88.82.218	sunnionlineradio.com	721
38.88.82.215	gngpublications.com	677
38.45.18.201	datainformationblockchain.top	656
38.40.244.238	fyayd.com	619
38.88.82.58	read2live.info	579
38.63.68.228	ioijxv622.top	572
38.45.18.202	sidecop.com	555

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

2,535,699 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.81.211.177	AS12183 Talkie Communications, Inc	`5.04ms` from Ashburn, US
38.81.219.87	AS12183 Talkie Communications, Inc	`5.37ms` from Ashburn, US
38.83.186.3	AS19635 Sandhill Telephone Cooperative, Inc.	`8.79ms` from Charlotte, US
38.83.140.3	AS396408 City of Greensboro, NC	`7.32ms` from Charlotte, US
38.83.130.143	AS63209 KODIAK NETWORKS, INC.	`0.79ms` from Charlotte, US
38.81.158.127	AS394717 S-Go Video and Internet	`19.88ms` from Chicago, US
38.83.98.2	AS174 Cogent Communications, LLC	`0.75ms` from Dallas, US
38.83.124.99	AS395246 Legacy ISP, LLC	`1.09ms` from Dallas, US
38.83.139.78	AS174 Cogent Communications, LLC	`4.94ms` from Durham, US
38.81.162.6	AS174 Cogent Communications, LLC	`0.71ms` from Houston, US
38.82.221.226	AS63430 5x5 Telecom	`0.73ms` from Los Angeles, US
38.83.20.5	AS174 Cogent Communications, LLC	`0.86ms` from Marseille, FR
38.82.8.1	AS400893 Fiber Connect, LLC.	`10.68ms` from New York City, US
38.83.202.3	AS56504 HostCircle B.V.	`0.16ms` from Amsterdam, NL
38.83.193.1	AS174 Cogent Communications, LLC	`0.56ms` from Boston, US
38.82.20.66	AS174 Cogent Communications, LLC	`0.36ms` from Chicago, US
38.81.148.1	AS394717 S-Go Video and Internet	`20.03ms` from Chicago, US
38.83.117.163	AS174 Cogent Communications, LLC	`1.00ms` from Dallas, US
38.83.30.1	AS393684 Infinity Network Services, Inc.	`8.40ms` from Durham, US
38.83.160.19	AS401136 LC Industries Inc.	`8.97ms` from Durham, US
38.83.224.70	AS174 Cogent Communications, LLC	`0.32ms` from Houston, US
38.81.168.17	AS174 Cogent Communications, LLC	`1.97ms` from New York City, US
38.81.213.13	AS12183 Talkie Communications, Inc	`5.32ms` from Ashburn, US
38.83.201.150	AS174 Cogent Communications, LLC	`0.72ms` from Boston, US
38.81.145.1	AS394717 S-Go Video and Internet	`19.93ms` from Chicago, 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
87.195.183.56	AS12414 Solcon Internetdiensten B.V.	`6.06ms` from Amsterdam, NL
176.131.113.56	AS5410 Bouygues Telecom SA	`3.43ms` from Aubervilliers, FR
15.197.177.72	AS16509 Amazon.com, Inc.	`0.04ms` from Bangkok, TH
34.218.46.248	AS16509 Amazon.com, Inc.	`0.11ms` from Boardman, US
72.181.127.136	AS11427 Charter Communications Inc	`9.90ms` from Dallas, US
152.36.187.216	AS398754 CoastConnect LLC	`14.54ms` from Dallas, US
223.190.246.232	AS24560 Bharti Airtel Ltd., Telemedia Services	`8.47ms` from Delhi, IN
137.66.0.248	AS40509 Fly.io, Inc.	`0.10ms` from Johannesburg, ZA
94.197.177.8	AS206067 Hutchison 3G UK Limited	`14.30ms` from London, GB
172.114.85.200	AS20001 Charter Communications Inc	`3.44ms` from Los Angeles, US
79.127.238.152	AS60068 Datacamp Limited	`0.17ms` from Miami, US
116.11.102.152	AS4134 CHINANET-BACKBONE	`4.37ms` from Nanning, CN
202.169.82.8	AS10000 Nagasaki Cable Media Inc.	`9.42ms` from Osaka, JP
101.232.43.40	AS62387 meerfarbig GmbH & Co. KG	`2.92ms` from Shenzhen, CN
121.45.46.184	AS7545 TPG Telecom Limited	`4.92ms` from Sydney, AU
34.127.22.168	AS396982 Google LLC	`0.14ms` from The Dalles, US
20.124.52.120	AS8075 Microsoft Corporation	`0.39ms` from Ashburn, US
185.140.211.200	AS8849 Melbikomas UAB	`0.18ms` from Atlanta, US
128.104.136.8	AS59 University of Wisconsin Madison	`5.47ms` from Chicago, US
79.246.165.56	AS3320 Deutsche Telekom AG	`6.40ms` from Frankfurt am Main, DE
14.173.60.104	AS45899 VNPT Corp	`3.47ms` from Ho Chi Minh City, VN
68.199.85.104	AS6128 Cablevision Systems Corp.	`3.27ms` from New York City, US
180.22.131.8	AS4713 NTT Communications Corporation	`9.14ms` from Osaka, JP
76.132.136.232	AS7922 Comcast Cable Communications, LLC	`5.42ms` from San Jose, US
116.233.145.152	AS4812 China Telecom (Group)	`3.64ms` from Shanghai, CN

Traceroute

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

traceroute -a -n -q1 -f5 38.108.99.25

traceroute to 38.108.99.25 (38.108.99.25): 64 hops max, 52 byte packets

5 [AS2914] 165.254.16.13 0.751 ms

6 [AS1422] 38.108.99.25 0.884 ms

Measurement taken from

IPinfo ProbeNet in New York City, US

On October 3rd 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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