205.242.20.0/23

AS174 · Cogent Communications, LLC

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Summary

Country	United States
Domain	cogentco.com
ASN	AS174
Parent Range	205.240.0.0/13
Registry	RWHOIS
ID	NET4-CDF2140017

WHOIS Details

No whois details available for this network

Overlapping Ranges

BGP prefixes that contain 205.242.20.0/23

Range	ASN	Company	Num of IPs
205.240.0.0/13	AS13676	Cogent Communications, LLC	524,288
205.240.0.0/13	AS174	Cogent Communications, LLC	524,288
205.240.0.0/13	AS26077	Cogent Communications, LLC	524,288
205.240.0.0/13	AS40508	Cogent Communications, LLC	524,288
205.240.0.0/13	AS6062	Cogent Communications, LLC	524,288

Nearby Ranges

BGP prefixes that overlap with 205.242.0.0/16

Range	ASN	Company	Num of IPs
205.240.0.0/13	AS13676	Cogent Communications, LLC	524,288
205.240.0.0/13	AS174	Cogent Communications, LLC	524,288
205.240.0.0/13	AS26077	Cogent Communications, LLC	524,288
205.240.0.0/13	AS40508	Cogent Communications, LLC	524,288
205.240.0.0/13	AS6062	Cogent Communications, LLC	524,288
205.242.92.0/23	AS6428	Primary Network	512
205.242.189.0/24	AS6428	Midwest Medical Supply	256
205.242.190.0/24	AS6428	National Benevolent Association	256

Hosted domains

There are 19 domain names hosted across 17 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
205.242.21.2	odishahealth.com	3
205.242.20.133	flyphone.in	1
205.242.20.138	wynncom.net	1
205.242.20.46	ecoe.co.in	1
205.242.21.57	atlantahealthanddental.com	1
205.242.20.196	pradyumnabalelibrary.com	1
205.242.21.56	greggk.com	1
205.242.20.220	companikcpa.com	1
205.242.20.141	lectrix.in	1
205.242.20.136	livguard.sg	1
205.242.20.30	gajapati.org	1
205.242.21.59	fhmd-aua.com	1
205.242.20.25	ipostbox.com	1
205.242.20.103	tdulany.com	1
205.242.21.51	oduber.net	1
205.242.20.90	bhubaneswarlaparoscopy.com	1
205.242.20.137	worldace.in	1

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

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

IP Address	ASN	Details
205.242.20.1	AS174 Cogent Communications, LLC	`1.17ms` from Phoenix, 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
162.224.176.23	AS7018 AT&T Enterprises, LLC	`7.94ms` from Chicago, US
27.14.85.39	AS4837 CHINA UNICOM China169 Backbone	`2.32ms` from Chongqing, CN
34.243.91.247	AS16509 Amazon.com, Inc.	`0.16ms` from Dublin, IE
181.221.96.7	AS28573 Claro NXT Telecomunicacoes Ltda	`18.81ms` from Fortaleza, BR
116.63.188.183	AS58519 Cloud Computing Corporation	`1.03ms` from Guiyang, CN
222.166.129.183	AS9908 HK Cable TV Ltd	`4.96ms` from Hong Kong, HK
35.219.114.7	AS15169 Google LLC	`0.13ms` from Jakarta, ID
99.59.246.151	AS7018 AT&T Enterprises, LLC	`12.03ms` from Kansas City, US
47.150.252.71	AS5650 Frontier Communications of America, Inc.	`2.98ms` from Los Angeles, US
24.0.238.23	AS7922 Comcast Cable Communications, LLC	`4.81ms` from New York City, US
79.220.63.23	AS3320 Deutsche Telekom AG	`4.68ms` from Nuernberg, DE
60.90.245.215	AS17676 SoftBank Corp.	`3.72ms` from Osaka, JP
89.194.30.247	AS8011 MongoDB, Inc.	`0.15ms` from Reston, US
62.178.83.87	AS8412 T-Mobile Austria GmbH	`14.05ms` from Vienna, AT
83.111.198.23	AS5384 Emirates Internet	`10.02ms` from Al Fujairah City, AE
20.127.182.151	AS8075 Microsoft Corporation	`0.32ms` from Ashburn, US
85.204.122.199	AS44682 SIL-MIRO COM SRL	`0.87ms` from Bucharest, RO
163.19.166.247	AS1659 Taiwan Academic Network (TANet) Information Center	`8.91ms` from Chang-hua, TW
102.39.86.183	AS11845 Vox Telecom Ltd	`1.81ms` from Durban, ZA
1.53.248.23	AS18403 FPT Telecom Company	`2.16ms` from Ho Chi Minh City, VN
174.75.13.23	AS22773 Cox Communications Inc.	`8.28ms` from Kansas City, US
51.14.111.199	AS2856 British Telecommunications PLC	`2.16ms` from London, GB
90.4.205.71	AS3215 Orange S.A.	`17.63ms` from Lyon, FR
89.88.135.183	AS5410 Bouygues Telecom SA	`4.93ms` from Marseille, FR
187.227.187.199	AS8151 UNINET	`10.13ms` from Mexico City, MX

Traceroute

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

traceroute -a -n -q1 -f3 -m13 205.242.21.216

traceroute to 205.242.21.216 (205.242.21.216): 13 hops max, 52 byte packets

3 [] 15.230.139.162 442.611 ms

4 *

5 *

6 *

7 [AS16509] 52.93.254.216 1.007 ms

8 *

9 [AS174] 154.54.6.77 1.659 ms

10 [AS174] 154.54.171.5 8.045 ms

11 *

12 *

13 *

Measurement taken from

IPinfo ProbeNet in Houston, US

On January 9th 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.

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