Autonomous System details

AS4000

Cogent Communications, LLC · cogentco.com

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AS4000 – 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	a month 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:       AS4000
                                                OrgID:          AS4000
                                                ASName:         AS4000
                                                ASNumber:       AS4000
                                                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
73.133.3.176	AS7922 Comcast Cable Communications, LLC	`8.66ms` from Ashburn, US
1.92.68.64	AS55990 Huawei Cloud Service data center	`3.69ms` from Beijing, CN
12.169.124.80	AS7018 AT&T Enterprises, LLC	`8.87ms` from Columbus, US
97.176.116.16	AS6167 Verizon Business	`10.92ms` from Dallas, US
107.205.105.128	AS7018 AT&T Enterprises, LLC	`2.99ms` from Dallas, US
87.148.222.48	AS3320 Deutsche Telekom AG	`2.44ms` from Duesseldorf, DE
118.218.178.96	AS9318 SK Broadband Co Ltd	`6.75ms` from Incheon, KR
134.129.50.112	AS19530 State of North Dakota, ITD	`7.24ms` from Minneapolis, US
186.53.189.32	AS6057 Administracion Nacional de Telecomunicaciones	`1.70ms` from Montevideo, UY
112.83.63.192	AS4837 CHINA UNICOM China169 Backbone	`5.41ms` from Nanjing, CN
213.57.240.0	AS12849 Hot-Net internet services Ltd.	`2.48ms` from Petaẖ Tiqva, IL
20.86.92.32	AS8075 Microsoft Corporation	`0.28ms` from Amsterdam, NL
86.35.194.0	AS9050 Orange Romania S.A.	`0.20ms` from Bucharest, RO
196.223.137.64	AS328471 HERO TELECOMS (PTY) LTD	`3.65ms` from Cape Town, ZA
50.30.184.16	AS23473 PAVLOV MEDIA INC	`0.24ms` from Chicago, US
106.214.251.144	AS24560 Bharti Airtel Ltd., Telemedia Services	`9.68ms` from Delhi, IN
77.181.63.224	AS6805 Telefonica Germany GmbH & Co.OHG	`2.89ms` from Frankfurt am Main, DE
2.102.175.96	AS13285 TalkTalk Communications Limited	`2.52ms` from London, GB
185.110.117.128	AS203469 Puntozero S.c.a.r.l.	`10.71ms` from Milan, IT
185.238.201.16	AS29076 Citytelecom LLC	`0.76ms` from Moscow, RU
3.228.234.240	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
81.75.134.0	AS3269 Telecom Italia S.p.A.	`14.76ms` from Rome, IT
182.155.244.144	AS17809 VEE TIME CORP.	`3.20ms` from Taipei, TW
133.201.84.32	AS2518 BIGLOBE Inc.	`3.82ms` from Tokyo, JP
153.135.244.128	AS4713 NTT DOCOMO BUSINESS,Inc.	`15.98ms` from Tokyo, JP

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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 AS4000 at robtex.

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