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	3 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
23.197.146.65	AS16625 Akamai Technologies, Inc.	`0.33ms` from Amsterdam, NL
199.160.243.49	AS6079 RCN	`2.88ms` from Ashburn, US
71.62.72.1	AS7922 Comcast Cable Communications, LLC	`6.89ms` from Ashburn, US
119.76.135.1	AS17552 True Online	`9.69ms` from Bangkok, TH
61.149.191.65	AS4808 China Unicom Beijing Province Network	`2.59ms` from Beijing, CN
60.29.119.33	AS4837 CHINA UNICOM China169 Backbone	`5.74ms` from Beijing, CN
73.114.23.241	AS7922 Comcast Cable Communications, LLC	`4.38ms` from Boston, US
45.4.184.33	AS263539 NEW SYSTEM INTERNET	`1.13ms` from Brasilia, BR
154.237.159.1	AS36992 ETISALAT MISR	`17.96ms` from Cairo, EG
41.46.248.1	AS8452 TE-AS	`1.72ms` from Cairo, EG
70.73.18.145	AS6327 Shaw Communications	`3.98ms` from Calgary, CA
169.1.35.1	AS37611 AFRIHOST SP (PTY) LTD	`2.03ms` from Cape Town, ZA
119.49.172.1	AS4837 CHINA UNICOM China169 Backbone	`3.71ms` from Changchun, CN
177.11.62.1	AS52934 Tolrs Informática Ltda	`2.74ms` from Chapeco, BR
216.249.105.1	AS11402 Charlotte Colocation Center, LLc	`0.73ms` from Charlotte, US
223.87.12.129	AS9808 China Mobile Communications Group Co., Ltd.	`3.55ms` from Chengdu, CN
122.165.118.1	AS24560 Bharti Airtel Ltd., Telemedia Services	`0.69ms` from Chennai, IN
64.56.125.161	AS14131 DataYard	`2.33ms` from Cincinnati, US
129.119.17.1	AS1832 Southern Methodist University	`1.61ms` from Dallas, US
66.76.105.129	AS19108 Optimum	`8.20ms` from Dallas, US
82.12.179.33	AS5089 Virgin Media Limited	`10.38ms` from Dublin, IE
202.193.148.33	AS4538 China Education and Research Network Center	`19.26ms` from Guangzhou, CN
121.203.144.193	AS17924 SmarTone Mobile Communications Ltd	`12.37ms` from Hong Kong, HK
206.238.156.1	AS399077 Tcloudnet	`1.53ms` from Hong Kong, HK
45.192.103.1	AS401701 cognetcloud INC	`0.30ms` from Hong Kong, HK

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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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