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	4 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
94.200.72.65	AS15802 Emirates Integrated Telecommunications Company PJSC	`1.90ms` from Abu Dhabi, AE
217.105.183.1	AS33915 Vodafone Libertel B.V.	`2.66ms` from Amsterdam, NL
50.31.45.65	AS11377 SendGrid, Inc.	`0.39ms` from Ashburn, US
108.4.88.1	AS701 Verizon Business	`5.06ms` from Ashburn, US
73.28.204.1	AS7922 Comcast Cable Communications, LLC	`15.42ms` from Atlanta, US
119.76.135.1	AS17552 True Online	`9.95ms` from Bangkok, TH
171.97.12.1	AS17552 True Online	`1.63ms` from Bangkok, TH
221.219.65.241	AS4808 China Unicom Beijing Province Network	`3.78ms` from Beijing, CN
60.29.119.33	AS4837 CHINA UNICOM China169 Backbone	`5.76ms` from Beijing, CN
190.159.206.1	AS10620 Telmex Colombia S.A.	`18.26ms` from Bogota, CO
157.253.80.1	AS3603 University de Los Andes	`1.33ms` from Bogota, CO
176.79.65.1	AS3243 MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.	`0.67ms` from Braga, PT
78.169.178.1	AS9121 Turk Telekomunikasyon Anonim Sirketi	`8.93ms` from Bursa, TR
62.139.184.1	AS36992 ETISALAT MISR	`3.44ms` from Cairo, EG
41.65.71.129	AS36992 ETISALAT MISR	`7.26ms` from Cairo, EG
52.124.9.1	AS13911 Tera-byte Dot Com Inc.	`6.11ms` from Calgary, CA
169.1.35.1	AS37611 AFRIHOST SP (PTY) LTD	`1.82ms` from Cape Town, ZA
24.74.43.145	AS11426 Charter Communications Inc	`6.87ms` from Charlotte, US
24.247.91.129	AS20115 Charter Communications LLC	`8.04ms` from Chicago, US
50.227.181.193	AS7922 Comcast Cable Communications, LLC	`1.99ms` from Chicago, US
142.215.230.209	AS15830 Equinix (EMEA) Acquisition Enterprises B.V.	`0.31ms` from Dallas, US
152.186.146.97	AS701 Verizon Business	`0.54ms` from Dallas, US
138.128.232.193	AS16832 Secom, Inc	`5.21ms` from Denver, US
80.111.204.1	AS6830 Liberty Global Europe Holding B.V.	`1.51ms` from Dublin, IE
78.155.12.1	AS15547 netplus.ch SA	`4.09ms` from Geneve, CH

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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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