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

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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	`1.13ms` 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
73.133.82.87	AS7922 Comcast Cable Communications, LLC	`7.23ms` from Ashburn, US
54.186.135.215	AS16509 Amazon.com, Inc.	`0.20ms` from Boardman, US
54.70.27.39	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
18.237.203.247	AS16509 Amazon.com, Inc.	`0.28ms` from Boardman, US
76.139.63.87	AS7922 Comcast Cable Communications, LLC	`11.87ms` from Chicago, US
98.43.191.23	AS7922 Comcast Cable Communications, LLC	`5.48ms` from Denver, US
5.128.193.39	AS31200 Novotelecom Ltd	`1.55ms` from Novosibirsk, RU
38.29.192.231	AS174 Cogent Communications, LLC	`0.79ms` from Phoenix, US
54.242.213.231	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
211.138.107.199	AS56042 China Mobile communications corporation	`2.98ms` from Taiyuan, CN
54.249.179.183	AS16509 Amazon.com, Inc.	`0.15ms` from Tokyo, JP
130.239.11.135	AS2833 Umea University	`1.00ms` from Umea, SE
20.221.181.23	AS8075 Microsoft Corporation	`0.26ms` from Boydton, US
212.5.26.7	AS20676 Plusnet GmbH	`8.33ms` from Duesseldorf, DE
68.91.154.247	AS7018 AT&T Enterprises, LLC	`1.82ms` from Kansas City, US
212.49.246.103	AS8426 ClaraNET LTD	`7.22ms` from London, GB
73.124.42.151	AS7922 Comcast Cable Communications, LLC	`8.89ms` from Miami, US
37.23.38.87	AS12389 PJSC Rostelecom	`5.29ms` from Novosibirsk, RU
115.69.126.55	AS7623 Gyeongbuk Cable TV	`6.96ms` from Seoul, KR
74.12.248.231	AS577 Bell Canada	`2.02ms` from Toronto, CA
62.131.240.87	AS1136 KPN B.V.	`1.08ms` from Amsterdam, NL
35.189.176.215	AS396982 Google LLC	`0.17ms` from Chang-hua, TW
156.146.235.23	AS1448 United Cooperative Services	`2.68ms` from Dallas, US
83.145.244.23	AS29422 Telia Cygate Oy	`0.89ms` from Helsinki, FI
170.39.84.7	AS8075 Microsoft Corporation	`0.44ms` from London, 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 205.242.20.1

traceroute to 205.242.20.1 (205.242.20.1): 64 hops max, 52 byte packets

2 [AS174] 38.32.108.89 1.86 ms

3 [AS174] 154.54.87.1 1.537 ms

4 [AS174] 154.54.168.90 1.317 ms

5 [AS174] 205.242.20.1 1.247 ms

Measurement taken from

IPinfo ProbeNet in Phoenix, 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.

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