| AS Number | 4004 |
|---|---|
| AS Name | COGENT-4000 |
| Organization | Cogent Communications, LLC(cogc) |
| Country | US |
| Website | cogentco.com |
| Number of IPv4 Routes | 1 |
| Number of IPv6 Routes | 0 |
| ASN type | ISP |
| Registry | ARIN |
| Date Allocated | 2025-12-23T00:00 |
| Route | # IPs |
|---|---|
| 57.66.70.0/24 | 256 |
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
ASNumber: 4000 - 4005
ASName: COGENT-4000
ASHandle: AS4000
RegDate: 1994-11-04
Updated: 2025-12-23
Ref: https://rdap.arin.net/registry/autnum/4000
OrgName: Cogent Communications, LLC
OrgId: COGC
Address: 2450 N Street NW
City: Washington
StateProv: DC
PostalCode: 20037
Country: US
RegDate: 2000-05-30
Updated: 2025-09-23
Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref: https://rdap.arin.net/registry/entity/COGC
ReferralServer: rwhois://rwhois.cogentco.com:4321
OrgTechHandle: IPALL-ARIN
OrgTechName: IP Allocation
OrgTechPhone: +1-877-875-4311
OrgTechEmail: ipalloc@cogentco.com
OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN
OrgAbuseHandle: COGEN-ARIN
OrgAbuseName: Cogent Abuse
OrgAbusePhone: +1-877-875-4311
OrgAbuseEmail: abuse@cogentco.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN
OrgNOCHandle: ZC108-ARIN
OrgNOCName: Cogent Communications
OrgNOCPhone: +1-877-875-4311
OrgNOCEmail: noc@cogentco.com
OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
| AS Number | Description | Country |
|---|---|---|
| AS12552 | GlobalConnect AB | SE |
| AS5511 | Orange S.A. | FR |
| AS28792 | Public Internet Ltd | GB |
| AS35266 | EX Networks Limited | GB |
| AS9505 | Chunghwa Telecom Co., Ltd. | TW |
| AS60602 | Inovare-Prim SRL | MD |
| AS38880 | Micron21 Datacentre Pty Ltd | AU |
| AS327727 | C Squared Limited | UG |
| AS14537 | Continent 8 LLC | US |
| AS198150 | SIACOM JSC | GE |
| AS45352 | IP ServerOne Solutions Sdn Bhd | MY |
| AS45437 | Real World - The Core | AU |
| AS40850 | UPIX NETWORKS INTERNATIONAL LLC | US |
| AS267256 | ONETIS TECNOLOGIA LTDA | BR |
| AS37468 | Angola Cables | AO |
| AS47957 | Worldline IGSA SA | FR |
| AS34288 | Kantonsschule Zug | CH |
| AS37497 | Network Platforms PTY LTD | ZA |
| AS6461 | Zayo Bandwidth | US |
| buy plan | IPTP LTD | GB |
| buy plan | DSM (GB) Limited | GB |
| buy plan | BSE Software GmbH | CH |
| buy plan | Orange Romania S.A. | RO |
| buy plan | GSL Networks Pty LTD | AU |
| AS Number | Description | Country |
|---|---|---|
| AS12552 | GlobalConnect AB | SE |
| AS5511 | Orange S.A. | FR |
| AS39351 | 31173 Services AB | SE |
| AS9505 | Chunghwa Telecom Co., Ltd. | TW |
| AS6939 | Hurricane Electric LLC | US |
| AS327727 | C Squared Limited | UG |
| AS8966 | EMIRATES TELECOMMUNICATIONS GROUP COMPANY ETISALAT GROUP PJSC | AE |
| AS56911 | Warian S.R.L. | IT |
| AS37468 | Angola Cables | AO |
| buy plan | IPTP LTD | GB |
| buy plan | F5 Networks SARL | FR |
| buy plan | Broadband Hosting B.V. | NL |
| buy plan | BSE Software GmbH | CH |
| buy plan | GSL Networks Pty LTD | AU |
| AS Number | Description | Country |
|---|---|---|
| AS51964 | ORANGE BUSINESS SERVICES U.S. Inc. | US |
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