Data as of Nov 3, 2026

154.13.136.0/21

256 anonymizer addresses · 13% · Datacenter proxy1 residential-proxy exit · 30 days

Cogent Communications, LLC

Announcement
No RPKI
Announced by
Type
Internet provider
88% of it

Residential-proxy exits

Proxy exits
1
0.05% of its addresses · 30 days
Oct 4, 2026 – Nov 2, 2026

Exits seen per day

1 observation
IPv4 market

Path

1 · Holder
2 · Leased from
3 · Announced by
AS174 Cogent Communications, LLC
since Jan 2007 · 19.8 yr ago
4 · Use
Proxy providersnamed Oxylabs
Internet provider

Operators, sellers and brokers

Proxy providers

NameParentIn 154.13.136.0/21/24s
OxylabsTesonet
25613%
1
Leased from

IP brokers

NameIn 154.13.136.0/21/24s
Aventice
25613%
1
Leased from

Owners leasing their own space

NameIn 154.13.136.0/21/24s
Cogent Communications, LLC
25613%
1

Announcements

More specific

Announcements inside

PrefixOriginTypeOperatorLeased fromHolderRPKI
154.13.136.0/24
since Sep 2023
AS212238Datacenter proxyProxy providerssold by OxylabsIP 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
154.13.0.0/1665,536COGENT-154-13-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992[email protected]
└ 154.13.136.0/212,048AVENTICE-CGNT-NET-18Aventice LLC (AL-584) · USReallocatedDec 1, 2022[email protected]
└ 154.13.136.0/24256NCRYPTD-NET-LTDNcryptd Net Ltd (C09770859) · USReassignedJul 6, 2023[email protected]
via AVENTICE-CGNT-NET-18
└ 154.13.137.0/24256WIFIBER-IKEWifiber IKE (C09246119) · USReassignedFeb 22, 2023[email protected]
via AVENTICE-CGNT-NET-18
└ 154.13.138.0/24256WIFIBER-IKEWifiber IKE (C09233911) · USReassignedFeb 20, 2023[email protected]
via AVENTICE-CGNT-NET-18
└ 154.13.139.0/24256WIFIBER-IKEWifiber IKE (C09233917) · USReassignedFeb 20, 2023[email protected]
via AVENTICE-CGNT-NET-18
└ 154.13.140.0/221,024WIFIBER-IKEWifiber IKE (C09233918) · USReassignedFeb 20, 2023[email protected]
via AVENTICE-CGNT-NET-18

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

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses
TypeAddressesShareRanges
Internet provider1,79288%1
Datacenter proxyanonymizer25613%1

Network & registry

Announced by

Covering announcement 154.12.0.0/15

Prefix
154.12.0.0/15
Announced by
AS174 Cogent Communications, LLC
Type
Internet provider
Anonymizer addresses
9,216 addresses · 7.0%ISP proxy
Operator
Proxy providersoperated by High Proxies
Leased from
IP broker Aventice (part)
Proxy exits
623
Always-on exits
174
RPKI
No RPKI
RIR
ARIN
IPv4 market

Holder

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