Data as of Nov 11, 2026

154.28.80.0/21

1,024 anonymizer addresses · 50% · Datacenter proxy

Cogent Communications, LLC

Announcement
No RPKI
Announced by
Type
Datacenter proxy
50% of it
IPv4 market

Path

1 · Holder
2 · Leased from
3 · Announced by
AS174 Cogent Communications, LLC
since Sep 2006 · 20.2 yr ago
4 · Use
Datacenter proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 154.28.80.0/21/24s
Aventice
1,02450%
4
Leased from

Owners leasing their own space

NameIn 154.28.80.0/21/24s
Cogent Communications, LLC
1,02450%
4

Announcements

More specific

Announcements inside

PrefixOriginTypeLeased fromHolderRPKI
154.28.84.0/22
since May 2022
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
154.28.0.0/1665,536COGENT-154-28-16Cogent Communications, LLC (COGC) · USDirect AllocationFeb 5, 1992abuse@cogentco.com
└ 154.28.64.0/1816,384AVENTICE-CGNT-NET-7Aventice LLC (AL-584) · USReallocatedDec 8, 2021abuse@aventice.com

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
Datacenter proxyanonymizer1,02450%1
Internet provider1,02450%1

Network & registry

Routing timeline

Who has announced 154.24.0.0/13

154.24.0.0/13

Routing history

Pattern
Stable
First seen
Sep 2006
Current origin since
Sep 2006 · 20 yr
Origin networks
1