Autonomous System details

AS4001

Cogent Communications, LLC · cogentco.com

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AS4001 – Cogent Communications, LLC

Field	Value
Country	United States
Website	cogentco.com
Hosted domains	0
IPv4 addresses	0
IPv6 addresses	0
ASN type	Inactive
Registry	arin
Allocated	31 years ago on Nov 04, 1994
Updated	2 months ago on Dec 23, 2025

IP Ranges

There are no known IP addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS4001
                                                OrgID:          AS4001
                                                ASName:         AS4001
                                                ASNumber:       AS4001
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There are no peers for this ASN.

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Upstreams

There are no upstreams for this ASN.

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

No IPs in this ASN 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
217.105.183.1	AS33915 Vodafone Libertel B.V.	`2.70ms` from Amsterdam, NL
213.53.131.49	AS702 Verizon Business	`2.00ms` from Amsterdam, NL
162.211.27.1	AS396006 SPITwSPOTS	`2.88ms` from Anchorage, US
119.76.135.1	AS17552 True Online	`10.11ms` from Bangkok, TH
181.32.198.65	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.57ms` from Bogota, CO
176.79.65.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`0.68ms` from Braga, PT
46.97.19.209	AS12302 Vodafone Romania S.A.	`0.44ms` from Bucharest, RO
186.136.113.1	AS7303 Telecom Argentina S.A.	`0.99ms` from Buenos Aires, AR
181.168.226.1	AS7303 Telecom Argentina S.A.	`1.29ms` from Buenos Aires, AR
181.171.83.1	AS7303 Telecom Argentina S.A.	`19.70ms` from Buenos Aires, AR
68.146.176.1	AS6327 Shaw Communications	`1.42ms` from Calgary, CA
91.108.76.1	AS55410 Vodafone Idea Ltd	`6.67ms` from Chennai, IN
64.132.161.209	AS3549 Level 3 Parent, LLC	`1.01ms` from Chicago, US
63.250.255.113	AS7029 Windstream Communications LLC	`1.53ms` from Chicago, US
174.103.149.65	AS10796 Charter Communications Inc	`14.16ms` from Cleveland, US
24.166.7.49	AS10796 Charter Communications Inc	`15.89ms` from Columbus, US
78.67.40.1	AS3301 Telia Company AB	`2.04ms` from Copenhagen, DK
62.96.20.33	AS8220 COLT Technology Services Group Limited	`0.79ms` from Frankfurt am Main, DE
36.251.252.177	AS4837 CHINA UNICOM China169 Backbone	`6.06ms` from Fuzhou, CN
31.165.144.1	AS6730 Sunrise GmbH	`0.22ms` from Geneve, CH
37.136.250.113	AS16086 DNA Oyj	`12.44ms` from Helsinki, FI
123.22.96.65	AS45899 VNPT Corp	`1.79ms` from Ho Chi Minh City, VN
103.229.50.209	AS7483 Skycloud Computing co., Ltd.	`0.78ms` from Hong Kong, HK
210.3.47.1	AS9304 HGC Global Communications Limited	`3.32ms` from Hong Kong, HK
73.136.56.1	AS7922 Comcast Cable Communications, LLC	`4.39ms` from Houston, US

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS4001 at robtex.

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