204.157.136.0/21

AS174 · Cogent Communications, LLC

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Summary

Country	United States
Domain	cogentco.com
ASN	AS174
Parent Range	204.157.0.0/16
Registry	RWHOIS
ID	NET4-CC9D880015

WHOIS Details

No whois details available for this network

Overlapping Ranges

BGP prefixes that contain 204.157.136.0/21

Range	ASN	Company	Num of IPs
204.157.0.0/16	AS174	Cogent Communications, LLC	65,536

Nearby Ranges

BGP prefixes that overlap with 204.157.0.0/16

Range	ASN	Company	Num of IPs
204.157.0.0/16	AS174	Cogent Communications, LLC	65,536
204.157.80.0/20	AS27694	Flamingo TV Bonaire B.V.	4,096
204.157.108.0/22	AS53107	E-CONSULTERS ENTERPRISE LTDA	1,024
204.157.100.0/22	AS273648	Rede Gama Telecom	1,024
204.157.104.0/22	AS265622	Wistarip Networks	1,024
204.157.148.0/22	AS174	Cogent Communications - IPENG	1,024
204.157.188.0/22	AS46388	Max Internet Solutions LLC	1,024
204.157.162.0/23	AS174	Cogent Communications - IPENG	512
204.157.184.0/23	AS273143	SIGNAL PERU S.A.C.	512
204.157.248.0/23	AS399622	Wireless Data Net, LLC	512
204.157.132.0/23	AS267219	NETWARE TELECOMUNICACOES E INFORMATICA EIRELI	512
204.157.166.0/23	AS272744	DC INTERNET LTDA	512
204.157.144.0/23	AS273586	FLAVIO FERNANDO COSTA / JF NET TELECOMUNICACOES, INFORMATICA E SEGURANCA	512
204.157.251.0/24	AS272868	SEQURE NETWORKS SRL	256
204.157.232.0/24	AS272930	Intercol Colombia	256
204.157.96.0/24	AS272951	Intercom Servicios C.A.	256
204.157.79.0/24	AS273506	Cnx Projetos e Tecnologia LTDA	256
204.157.76.0/24	AS274020	Cogent Communications - IPENG	256
204.157.240.0/24	AS274129	ABITAVERAS WIRELESS, S.R.L.	256
204.157.243.0/24	AS274131		256
204.157.244.0/24	AS274131		256
204.157.236.0/24	AS52511	MLINK TELECOM	256
204.157.254.0/24	AS271982	TELEVISION, PUNTO I COMUNICACIONES, S.R.L.	256
204.157.77.0/24	AS11432	Telium Telecomunicações Ltda	256
204.157.3.0/24	AS174	Cogent communications - IPENG	256
204.157.134.0/24	AS211084	RF COM S.R.L.	256
204.157.237.0/24	AS211580	BDR INFORMATICA Y COMUNICACIONES, SL	256
204.157.78.0/24	AS265315	F. L. CAHUE DE OLIVEIRA - INFORMATICA	256
204.157.234.0/24	AS265446	FASTNET TELECOM LTDA	256
204.157.245.0/24	AS268695	Carlos Andre de Oliveira	256
204.157.247.0/24	AS268695	Luis Felipe Alves de Souza	256
204.157.99.0/24	AS268952	DMZ INTERNET LTDA - MZ NET INTERNET FIBRA	256
204.157.233.0/24	AS269898	Sistema Comunicaciones TV SAC	256
204.157.250.0/24	AS270175	iCentral Sistemas y Comunicaciones, S.A. de C.V.	256
204.157.98.0/24	AS11404	North Olympic Peninsula Data Centers, LLC	256
204.157.255.0/24	AS272830	TELCOMNET PERU S.A.C.	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

Read more

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
177.82.136.53	AS28573 Claro NXT Telecomunicacoes Ltda	`5.96ms` from Curitiba, BR
73.26.255.69	AS7922 Comcast Cable Communications, LLC	`15.79ms` from Denver, US
52.48.98.5	AS16509 Amazon.com, Inc.	`0.17ms` from Dublin, IE
51.89.216.37	AS16276 OVH SAS	`0.07ms` from Erith, GB
3.125.126.149	AS16509 Amazon.com, Inc.	`0.11ms` from Frankfurt am Main, DE
168.93.34.213	AS35847 Ezee Fiber	`1.07ms` from Houston, US
192.22.34.85	AS31898 Oracle Corporation	`0.99ms` from Kansas City, US
90.216.120.117	AS5607 Sky UK Limited	`3.43ms` from London, GB
88.40.37.133	AS3269 Telecom Italia S.p.A.	`2.14ms` from Milan, IT
5.159.116.53	AS197078 Yarnet Ltd	`5.41ms` from Moscow, RU
201.86.193.133	AS18881 TELEFÔNICA BRASIL S.A	`7.55ms` from Novo Hamburgo, BR
208.38.174.213	AS16724 WideOpenWest Finance LLC	`3.24ms` from Orlando, US
34.230.68.21	AS14618 Amazon.com, Inc.	`0.59ms` from Reston, US
4.220.36.53	AS8075 Microsoft Corporation	`1.80ms` from Sandefjord, NO
13.114.121.165	AS16509 Amazon.com, Inc.	`0.30ms` from Tokyo, JP
110.154.38.21	AS4134 CHINANET-BACKBONE	`8.12ms` from UEruemqi, CN
125.47.93.53	AS4837 CHINA UNICOM China169 Backbone	`1.11ms` from Zhengzhou, CN
85.75.224.149	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`9.83ms` from Athens, GR
120.9.118.101	AS4837 CHINA UNICOM China169 Backbone	`9.81ms` from Beijing, CN
92.235.82.229	AS208708 Eurocable Magyarorszag Kft	`11.46ms` from Budapest, HU
207.250.227.229	AS18434 Fidelity National Information Services, Inc.	`5.26ms` from Chicago, US
96.216.29.117	AS7922 Comcast Cable Communications, LLC	`0.76ms` from Chicago, US
69.237.102.5	AS7018 AT&T Enterprises, LLC	`8.91ms` from Dallas, US
12.116.145.165	AS7018 AT&T Enterprises, LLC	`2.17ms` from Dallas, US
75.71.124.53	AS7922 Comcast Cable Communications, LLC	`5.47ms` from Denver, US

Traceroute

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

traceroute -a -n -q1 -f6 -m9 204.157.140.13

traceroute to 204.157.140.13 (204.157.140.13): 9 hops max, 52 byte packets

6 [AS174] 149.11.174.210 1.565 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Paris, FR

On December 6th 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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