38.99.21.0/24

AS174 · Cogent Communications, LLC

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	United States
Domain
ASN	AS174
Parent Range	38.0.0.0/8
Registry	RWHOIS
ID	NET4-2663150018

WHOIS Details

No whois details available for this network

Overlapping Ranges

BGP prefixes that contain 38.99.21.0/24

Range	ASN	Company	Num of IPs
38.0.0.0/8	AS174	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS53107	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS7029	Cogent Communications, LLC	16,777,216

Nearby Ranges

BGP prefixes that overlap with 38.99.0.0/16

Range	ASN	Company	Num of IPs
38.0.0.0/8	AS7029	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS53107	Cogent Communications, LLC	16,777,216
38.0.0.0/8	AS174	Cogent Communications, LLC	16,777,216
38.99.252.0/22	AS137182	Blue Wireless Pte. Ltd.	1,024
38.99.76.0/22	AS36323	Ezri / ImageShack Corp.	1,024
38.99.238.0/23	AS398991	X99 US LLC	512
38.99.86.0/23	AS174	Tangent Inc.	512
38.99.110.0/23	AS174	Chengdu Yanling Technology Co., Ltd.	512
38.99.118.0/24	AS174	Calview Netlink, Inc.	256
38.99.119.0/24	AS174	Ordr	256
38.99.120.0/24	AS174	Pure IP California LLC	256
38.99.121.0/24	AS174	Private Customer	256
38.99.126.0/24	AS174	AcquireWeb Inc.	256
38.99.135.0/24	AS174	VDI Networks	256
38.99.139.0/24	AS174	VDI Networks	256
38.99.142.0/24	AS174	NVG Communication Inc.	256
38.99.154.0/24	AS174	Bells & Whistles Communications, Inc.	256
38.99.190.0/24	AS174	Rogers Transit Services Inc.	256
38.99.19.0/24	AS174	345 California L.P.	256
38.99.225.0/24	AS174	CHSP Denver LLC - Hilton Denver City Ctr	256
38.99.248.0/24	AS174	BACK WAVES LIMITED	256
38.99.28.0/24	AS174	Lathrop GPM LLP	256
38.99.80.0/24	AS174	OneStepCloud	256
38.99.93.0/24	AS174	KAOPU CLOUD HK LIMITED	256
38.99.98.0/24	AS174	KAOPU CLOUD HK LIMITED	256
38.99.95.0/24	AS213900	RSCOMPUTERS L.L.C.	256
38.99.64.0/24	AS213971	SAS Connect-IX	256
38.99.84.0/24	AS214337	WebMedia - Nijmegen B.V.	256
38.99.99.0/24	AS274161		256
38.99.75.0/24	AS394993	Santa Clara Valley Transportation Authority ( VTA )	256
38.99.117.0/24	AS395029	STN Inc.	256
38.99.96.0/24	AS395362	8X8, Inc.	256
38.99.245.0/24	AS395507	Redlands Community Hospital	256
38.99.108.0/24	AS395748	NetSpeed LLC	256
38.99.138.0/24	AS397468	Think On Inc.	256
38.99.168.0/24	AS1100	Ravand CyberTech Inc	256
38.99.231.0/24	AS46447	North American Derivatives Exchange, Inc.	256
38.99.17.0/24	AS53268	EIS Group, Inc.	256
38.99.247.0/24	AS63023	GLOBALTELEHOST CORP.	256
38.99.82.0/24	AS63023	GLOBALTELEHOST CORP.	256
38.99.92.0/24	AS400424	OXIO	256
38.99.129.0/24	AS11636	MServices Limited Partnership	256
38.99.250.0/24	AS1286	Altay Corporation	256
38.99.66.0/24	AS14528	ShotSpotter Technology	256
38.99.243.0/24	AS154324	Qiniu (China) Limited	256
38.99.115.0/24	AS17378	Continuity Focus, Inc.	256
38.99.100.0/24	AS174	Zoom Video Communications	256
38.99.113.0/24	AS174	AcquireWeb Inc.	256

Hosted domains

There are no domains currently hosted on this ASN.

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

255 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
38.99.21.109	AS174 Cogent Communications, LLC	`0.75ms` from Los Angeles, 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
4.236.204.88	AS8075 Microsoft Corporation	`0.38ms` from Ashburn, US
93.212.50.152	AS3320 Deutsche Telekom AG	`4.88ms` from Berlin, DE
45.36.92.104	AS11426 Charter Communications Inc	`9.74ms` from Charlotte, US
71.73.121.232	AS10796 Charter Communications Inc	`14.50ms` from Columbus, US
186.250.83.248	AS267621 IFIBER TELECOM	`9.19ms` from Curitiba, BR
47.76.186.168	AS45102 Alibaba (US) Technology Co., Ltd.	`0.64ms` from Hong Kong, HK
94.63.41.104	AS12353 Vodafone Portugal	`2.70ms` from Lisbon, PT
109.144.93.136	AS2856 British Telecommunications PLC	`0.81ms` from London, GB
83.56.112.56	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.78ms` from Madrid, ES
69.91.179.168	AS33659 Comcast Cable Communications, LLC	`1.81ms` from New York City, US
17.57.154.24	AS714 Apple Inc.	`1.02ms` from Phoenix, US
159.121.119.8	AS1798 State of Oregon	`2.28ms` from Portland, US
95.78.40.104	AS42116 JSC ER-Telecom Holding	`11.73ms` from Samara, RU
119.171.87.40	AS9824 JCOM Co., Ltd.	`14.27ms` from Tokyo, JP
201.127.133.136	AS8151 UNINET	`7.96ms` from Tucson, US
66.230.109.232	AS7782 Alaska Communications Systems Group, Inc.	`5.50ms` from Anchorage, US
152.190.35.40	AS701 Verizon Business	`3.66ms` from Ashburn, US
129.190.214.184	AS89 Navy Network Information Center (NNIC)	`2.71ms` from Ashburn, US
81.186.52.168	AS8248 Computer Technology Institute and Press Diophantus	`8.69ms` from Athens, GR
75.130.143.184	AS20115 Charter Communications LLC	`9.05ms` from Atlanta, US
52.43.95.72	AS16509 Amazon.com, Inc.	`0.15ms` from Boardman, US
73.219.228.152	AS7922 Comcast Cable Communications, LLC	`8.61ms` from Boston, US
105.233.195.184	AS36874 Cybersmart	`1.80ms` from Cape Town, ZA
64.123.58.72	AS7018 AT&T Enterprises, LLC	`0.56ms` from Dallas, US
90.199.103.200	AS5607 Sky UK Limited	`9.86ms` from Erith, GB

Traceroute

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

traceroute -a -n -q1 -f2 38.99.21.234

traceroute to 38.99.21.234 (38.99.21.234): 64 hops max, 52 byte packets

2 [AS35916] 64.69.46.5 0.667 ms

3 *

4 *

5 [AS174] 38.99.21.234 0.824 ms

Measurement taken from

IPinfo ProbeNet in Los Angeles, US

On January 19th 2026

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.

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales