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:      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

Overlapping Ranges

BGP prefixes that are contained by 38.0.0.0/8

Range	ASN	Company	Num of IPs
38.100.12.0/24	AS174	Peregrine Computer Consultants Corporation	256
38.100.135.0/24	AS174	DataNet Systems Inc	256
38.100.15.0/24	AS174	BizTech Fusion, L.L.C.	256
38.100.164.0/24	AS174	KBC Bank	256
38.100.165.0/24	AS174	BT Americas Inc	256
38.100.171.0/24	AS394034	Brooklyn Fiber	256
38.100.173.0/24	AS174	Muratek	256
38.100.180.0/24	AS174	Lantern Technology LLC	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
38.100.201.0/24	AS174	Hongkong Seaga Technology Limited	256
38.100.209.0/24	AS401063	Coltontel	256
38.100.211.0/24	AS33509	Cascade Access, LLC	256
38.100.215.0/24	AS174	Playnet, Inc.	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
38.62.227.0/24	AS55286	Server Mania Inc.	256
38.100.10.0/24	AS400704	NewConnect, LLC	256
38.100.103.0/24	AS395029	STN Inc.	256
38.100.104.0/24	AS174	The Final Call	256
38.100.105.0/24	AS174	BreezeHost	256
38.100.105.0/24	AS174	BreezeHost	256
38.100.105.0/24	AS400810	BreezeHost	256
38.100.105.0/24	AS400810	BreezeHost	256
38.100.117.0/24	AS174	McHenry County College	256
38.17.47.0/24	AS398721	OXIO	256
38.175.112.0/24	AS35487	Private Customer	256
38.175.113.0/24	AS35487	Private Customer	256
38.175.114.0/24	AS35487	Private Customer	256
38.175.115.0/24	AS35487	Private Customer	256
38.175.116.0/24	AS35487	Private Customer	256
38.175.117.0/24	AS35487	Private Customer	256
38.175.118.0/24	AS35487	Private Customer	256
38.175.119.0/24	AS35487	Private Customer	256
38.175.120.0/24	AS35487	Private Customer	256
38.175.121.0/24	AS35487	Private Customer	256
38.175.122.0/24	AS35487	Private Customer	256
38.175.123.0/24	AS35487	Private Customer	256
38.175.96.0/24	AS917	Private Customer	256
38.175.97.0/24	AS917	Private Customer	256
38.178.129.0/24	AS35986	Vyve Broadband	256
38.178.231.0/24	AS35986	VBL-52	256
38.180.0.0/24	AS9009	3NT SOLUTIONS LLP	256
38.180.10.0/24	AS34702	3NT SOLUTIONS LLP	256
38.180.1.0/24	AS9009	3NT SOLUTIONS LLP	256
38.180.11.0/24	AS9009	3NT SOLUTIONS LLP	256
38.180.114.0/24	AS58061	3NT SOLUTIONS LLP	256

Hosted domains

There are 4,951,802 domain names hosted across 847,420 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
38.97.40.218	mdar.diy	2520
38.97.40.217	velozdht.top	2519
38.97.40.219	desuisfaithful.top	2518
38.45.18.203	makelogoonlinefree.com	2268
38.64.166.13	laredorealestatehomes.com	2066
38.88.82.220	focuslinkglobal.com	2062
38.70.16.72	edhelper.com	1027
38.88.82.216	flatearth101.com	855
38.88.82.62	hobbizine.com	789
38.88.82.214	gcbwireless.net	789
38.88.82.217	papaenricospizza.ca	740
38.190.187.101	transportedecargagr.com	726
38.88.82.218	sunnionlineradio.com	719
38.88.82.215	gngpublications.com	674
38.40.244.238	hfhhjc.com	617
38.45.18.201	pillowly.icu	595
38.88.82.58	bravestores.com	579
38.63.68.228	11192.top	572
38.88.82.223	rentslowmotion.com	540
38.88.82.224	serialrapistmurderer.com	537

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

2,584,535 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.91.47.81	AS174 Cogent Communications, LLC	`0.22ms` from Ashburn, US
38.89.226.2	AS174 Cogent Communications, LLC	`0.91ms` from Chicago, US
38.89.100.1	AS46294 SCATUI	`3.54ms` from Phoenix, US
38.90.142.3	AS174 Cogent Communications, LLC	`0.71ms` from Ashburn, US
38.90.145.132	AS394957 Zadara Storage, Inc.	`0.20ms` from Ashburn, US
38.91.48.1	AS398371 OCBA	`2.03ms` from Ashburn, US
38.91.58.216	AS32181 GigeNET	`0.23ms` from Chicago, US
38.90.9.118	AS138571 SUPERCLOUDS LIMITED	`1.41ms` from Hong Kong, HK
38.89.74.2	AS212238 Datacamp Limited	`0.16ms` from London, GB
38.88.245.178	AS174 Cogent Communications, LLC	`0.23ms` from Los Angeles, US
38.89.164.1	AS25837 DATALINK INFORMATION TECHNOLOGIES INC.	`0.74ms` from Miami, US
38.89.81.3	AS212238 Datacamp Limited	`1.03ms` from New York City, US
38.89.152.65	AS398816 Flume	`0.84ms` from New York City, US
38.90.227.53	AS174 Cogent Communications, LLC	`0.70ms` from San Diego, US
38.88.228.57	AS174 Cogent Communications, LLC	`5.24ms` from San Jose, US
38.88.210.164	AS174 Cogent Communications, LLC	`0.52ms` from Secaucus, US
38.91.44.15	AS174 Cogent Communications, LLC	`0.20ms` from Ashburn, US
38.89.250.34	AS174 Cogent Communications, LLC	`0.84ms` from Chicago, US
38.89.236.129	AS174 Cogent Communications, LLC	`2.40ms` from Chicago, US
38.88.147.234	AS174 Cogent Communications, LLC	`0.39ms` from Chicago, US
38.88.202.158	AS174 Cogent Communications, LLC	`0.31ms` from Chicago, US
38.90.15.2	AS174 Cogent Communications, LLC	`0.59ms` from Los Angeles, US
38.91.96.1	AS38880 Micron21 Datacentre Pty Ltd	`0.34ms` from Los Angeles, US
38.88.164.98	AS174 Cogent Communications, LLC	`0.15ms` from Miami, US
38.89.80.3	AS212238 Datacamp Limited	`1.04ms` from New York City, 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
5.198.242.56	AS9038 Batelco Jordan	`4.11ms` from Amman, JO
69.137.147.248	AS7922 Comcast Cable Communications, LLC	`5.19ms` from Ashburn, US
20.127.26.168	AS8075 Microsoft Corporation	`0.47ms` from Ashburn, US
202.44.11.184	AS9551 King Mongkut's University of Technology	`2.79ms` from Bangkok, TH
149.233.231.8	AS15943 wilhelm.tel GmbH	`0.44ms` from Hamburg, DE
213.123.24.136	AS2856 British Telecommunications PLC	`0.97ms` from London, GB
67.114.76.184	AS7018 AT&T Enterprises, LLC	`2.20ms` from Los Angeles, US
38.53.142.248	AS40237 United Telephone Company	`4.23ms` from Nashville, US
179.213.247.152	AS28573 Claro NXT Telecomunicacoes Ltda	`5.26ms` from Osasco, BR
204.16.53.8	AS25645 Momentum Telecom, Inc.	`0.31ms` from Philadelphia, US
24.190.231.56	AS6128 Cablevision Systems Corp.	`8.15ms` from Piscataway, US
181.160.204.136	AS7418 TELEFÓNICA CHILE S.A.	`13.24ms` from Santiago, CL
38.39.16.8	AS22060 Netspectrum Wireless Internet Solutions	`6.96ms` from Toronto, CA
193.201.34.88	AS15694 Atman Sp. z o.o.	`0.55ms` from Warsaw, PL
36.47.133.200	AS4134 CHINANET-BACKBONE	`1.81ms` from Xi'an, CN
108.195.20.248	AS7018 AT&T Enterprises, LLC	`2.78ms` from Atlanta, US
104.10.189.8	AS7018 AT&T Enterprises, LLC	`12.71ms` from Atlanta, US
192.138.213.248	AS20143 Suffolk University	`1.68ms` from Boston, US
91.127.56.152	AS6855 Slovak Telekom, a.s.	`5.92ms` from Bratislava, SK
197.37.186.216	AS8452 TE-AS	`9.76ms` from Cairo, EG
186.209.19.152	AS28343 UNIFIQUE TELECOMUNICACOES S/A	`6.98ms` from Chapeco, BR
13.89.108.56	AS8075 Microsoft Corporation	`0.27ms` from Des Moines, US
84.164.39.184	AS3320 Deutsche Telekom AG	`4.93ms` from Duesseldorf, DE
176.37.192.216	AS39608 Lanet Network Ltd	`0.59ms` from Kyiv, UA
84.8.53.216	AS54253 Oracle Corporation	`6.29ms` from Muscat, OM

Traceroute

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

traceroute -a -n -q1 -f3 38.33.11.50

traceroute to 38.33.11.50 (38.33.11.50): 64 hops max, 52 byte packets

3 [] 206.72.210.49 0.65 ms

4 [AS3491] 63.223.60.158 7.958 ms

5 *

6 *

7 *

8 [AS54600] 38.33.11.50 8.286 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On October 9th 2025

What are IP address ranges?

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