Autonomous System details

AS4001

Cogent Communications, LLC  ·  cogentco.com

United States

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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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ASN API & Database

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
77.249.234.1 AS33915 Vodafone Libertel B.V. 0.83ms from Amsterdam, NL
213.34.151.113 AS33915 Vodafone Libertel B.V. 1.68ms from Amsterdam, NL
94.211.225.1 AS33915 Vodafone Libertel B.V. 2.00ms from Amsterdam, NL
95.99.236.1 AS50266 Odido Netherlands B.V. 4.54ms from Amsterdam, NL
13.81.202.65 AS8075 Microsoft Corporation 0.28ms from Amsterdam, NL
216.55.42.113 AS2828 Verizon Business 4.81ms from Ashburn, US
192.182.199.33 AS5650 Frontier Communications of America, Inc. 6.76ms from Ashburn, US
177.250.128.1 AS27768 COMPAÑIA PARAGUAYA DE COMUNICACIONES S.A. (COPACO S.A.) 5.18ms from Asuncion, PY
172.253.243.33 AS15169 Google LLC 7.11ms from Atlanta, US
84.140.128.49 AS3320 Deutsche Telekom AG 2.30ms from Berlin, DE
200.175.164.17 AS18881 TELEFÔNICA BRASIL S.A 11.33ms from Brasilia, BR
189.125.71.1 AS3549 Level 3 Parent, LLC 0.73ms from Brasilia, BR
201.212.117.1 AS7303 Telecom Argentina S.A. 13.45ms from Buenos Aires, AR
154.178.67.177 AS8452 TE-AS 5.80ms from Cairo, EG
199.216.165.1 AS852 TELUS Communications Inc. 1.70ms from Calgary, CA
12.13.99.97 AS7018 AT&T Enterprises, LLC 8.46ms from Chicago, US
119.86.75.1 AS4134 CHINANET BACKBONE 1.73ms from Chongqing, CN
163.182.40.1 AS6181 Cincinnati Bell Telephone Company LLC 7.70ms from Columbus, US
93.161.123.129 AS3292 TDC Holding A/S 1.55ms from Copenhagen, DK
65.182.68.1 AS13693 Vexus Fiber 9.81ms from Dallas, US
142.215.230.209 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.31ms from Dallas, US
4.42.205.145 AS3356 Level 3 Parent, LLC 0.37ms from Dallas, US
72.250.158.1 AS11961 Mid-Rivers Telephone Cooperative 17.48ms from Denver, US
184.60.16.1 AS4181 TDS TELECOM 0.34ms from Denver, US
174.59.7.1 AS7922 Comcast Cable Communications, LLC 15.44ms from Detroit, US

Related Networks

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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