Autonomous System details

AS4005

Cogent Communications, LLC · cogentco.com

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AS4005 – 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	19 days 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:       AS4005
                                                OrgID:          AS4005
                                                ASName:         AS4005
                                                ASNumber:       AS4005
                                                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
9.163.221.117	AS8075 Microsoft Corporation	`0.22ms` from Amsterdam, NL
172.199.160.229	AS8075 Microsoft Corporation	`0.70ms` from Amsterdam, NL
96.95.20.229	AS7922 Comcast Cable Communications, LLC	`8.19ms` from Ashburn, US
79.225.227.229	AS3320 Deutsche Telekom AG	`4.23ms` from Berlin, DE
39.34.17.5	AS17557 Pakistan Telecommunication Company Limited	`19.97ms` from Karachi, PK
222.221.228.229	AS4134 CHINANET-BACKBONE	`0.81ms` from Kunming, CN
185.17.175.133	AS60800 Netwise Hosting Ltd	`0.24ms` from London, GB
155.2.134.149	AS8399 SEWAN SAS	`1.65ms` from Paris, FR
72.18.253.37	AS14265 TPx Communications	`1.40ms` from San Jose, US
51.107.209.133	AS8075 Microsoft Corporation	`1.77ms` from Sandefjord, NO
203.238.201.133	AS18305 POSCO DX	`3.39ms` from Seoul, KR
222.136.152.245	AS4837 CHINA UNICOM China169 Backbone	`7.28ms` from Zhengzhou, CN
77.58.106.149	AS6730 Sunrise GmbH	`8.18ms` from Zuerich, CH
72.28.115.5	AS36086 Telx	`0.29ms` from Atlanta, US
39.102.187.37	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`0.21ms` from Beijing, CN
35.94.199.117	AS16509 Amazon.com, Inc.	`0.52ms` from Boardman, US
44.238.34.229	AS16509 Amazon.com, Inc.	`0.10ms` from Boardman, US
64.79.97.5	AS53264 SBA Edge, LLC	`0.97ms` from Chicago, US
79.241.116.69	AS3320 Deutsche Telekom AG	`3.30ms` from Duesseldorf, DE
161.35.72.37	AS14061 DigitalOcean, LLC	`0.17ms` from Frankfurt am Main, DE
42.96.37.5	AS38733 CMC Telecom Infrastructure Company	`1.42ms` from Ho Chi Minh City, VN
14.226.202.133	AS45899 VNPT Corp	`6.45ms` from Ho Chi Minh City, VN
61.239.159.21	AS9269 Hong Kong Broadband Network Ltd.	`0.51ms` from Hong Kong, HK
68.119.134.229	AS20115 Charter Communications LLC	`5.27ms` from Los Angeles, US
176.100.235.229	AS200738 FIBRAWORLD TELECOM S.A.U.	`7.31ms` from Madrid, ES

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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 AS4005 at robtex.

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