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Data as of Nov 4, 2026

154.37.120.0/21

Anonymizer · Datacenter proxy

Cogent Communications, LLC

Announcement
154.36.0.0/14
No RPKI
Announced by
AS174
Type
Datacenter proxy
IPv4 market

Path

1 · Holder
Unnamed holder
2 · Leased from
Aventice
for its owner Cogent Communications, LLC
3 · Announced by
AS174 Cogent Communications, LLC
since Sep 2006 · 20.1 yr ago
4 · Use
Proxy providersnamed Oxylabs
Datacenter proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 154.37.120.0/21/24s
OxylabsTesonet
51225%
2
Leased from

IP brokers

NameIn 154.37.120.0/21/24s
Aventice
2,048100%
8
Leased from

Owners leasing their own space

NameIn 154.37.120.0/21/24s
Cogent Communications, LLC
2,048100%
8

Announcements

More specific

Announcements inside

PrefixOriginTypeOperatorLeased fromHolderRPKI
154.37.120.0/24
since Sep 2023
AS262287Datacenter proxyProxy providerssold by OxylabsIP broker AventiceCogent Communications, LLC
via Aventice LLC
154.37.121.0/24
since Feb 2023
AS9009Datacenter proxyIP broker AventiceCogent Communications, LLC
via Aventice LLC
154.37.122.0/23
since Feb 2023
AS9009Datacenter proxyIP broker AventiceCogent Communications, LLC
via Aventice LLC
154.37.124.0/24
since Feb 2023
AS9009Datacenter proxyIP broker AventiceCogent Communications, LLC
via Aventice LLC
154.37.125.0/24
since Feb 2024
AS9009Datacenter proxyProxy providerssold by OxylabsIP broker AventiceCogent Communications, LLC
via Aventice LLC
154.37.126.0/23
since Feb 2023
AS9009Datacenter proxyIP broker AventiceCogent Communications, LLC
via Aventice LLC

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
154.37.0.0/1665,536COGENT-154-37-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.37.64.0/1816,384AVENTICE-CGNT-NET-14Aventice LLC (AL-584) · USReallocatedDec 8, 2021abuse@aventice.com
└ 154.37.120.0/24256WIFIBER-IKEWifiber IKE (C09649133) · USReassignedJun 12, 2023abuse@aventice.com
via AVENTICE-CGNT-NET-14
└ 154.37.121.0/24256WIFIBER-IKEWifiber IKE (C09233919) · USReassignedFeb 20, 2023abuse@aventice.com
via AVENTICE-CGNT-NET-14
└ 154.37.122.0/23512WIFIBER-IKEWIFIBERIKE (C09233920) · USReassignedFeb 20, 2023abuse@aventice.com
via AVENTICE-CGNT-NET-14
└ 154.37.124.0/24256WIFIBER-IKEWifiber IKE (C09233921) · USReassignedFeb 20, 2023abuse@aventice.com
via AVENTICE-CGNT-NET-14
└ 154.37.125.0/24256WIFIBER-IKEWifiber IKE (C09661941) · USReassignedJun 14, 2023abuse@aventice.com
via AVENTICE-CGNT-NET-14
└ 154.37.126.0/23512WIFIBER-IKEWifiber IKE (C09233922) · USReassignedFeb 20, 2023abuse@aventice.com
via AVENTICE-CGNT-NET-14

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 154.36.0.0/14

Prefix
154.36.0.0/14
Announced by
AS174 Cogent Communications, LLC
Type
Internet provider
Anonymizer addresses
none
Leased from
IP broker Aventice (part)
Proxy exits
2,117
Always-on exits
268
RPKI
No RPKI
RIR
ARIN
IPv4 market

Holder

Holder in the market →
Organization
Not stated by the registry
Origin network

AS174

US
Name
Cogent Communications, LLC
Type
Internet provider
Registered
May 16, 1996
Domain
cogentco.com
Website
www.cogentco.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
1,658