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Data as of Nov 14, 2026

149.51.192.0/18

8,448 anonymizer addresses · 52%1 residential-proxy exit · 30 days

Cogent Communications, LLC

Announcement
149.50.0.0/15
No RPKI
Announced by
AS174
Type
Hosting
48% of it

Residential-proxy exits

Proxy exits
1
<0.01% of its addresses · 30 days
Oct 15, 2026 – Nov 13, 2026

Exits seen per day

230 observations
IPv4 market

Path

1 · Holder
Unnamed holder
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS174 Cogent Communications, LLC
since Sep 2006 · 20.2 yr ago
4 · Use
Proxy providersnamed Bright Data
Hosting

Operators, sellers and brokers

Proxy providers

NameParentIn 149.51.192.0/18/24s
Bright Data
5123.1%
2
Leased from

IP brokers

NameIn 149.51.192.0/18/24s
Rackdog
7,93648%
31
Leased from

Owners leasing their own space

NameIn 149.51.192.0/18/24s
Cogent Communications, LLC
8,44852%
33

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

Arrived
PrefixOriginTypeAnonymizer addressesOperatorLeased fromHolderRPKI
149.51.192.0/21
since Jun 2024
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
149.51.200.0/21
since Jan 2023
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
149.51.200.0/22
since Sep 2024
AS11404ISP proxyIP broker RackdogCogent Communications, LLC
149.51.204.0/22
since Sep 2024
AS11404ISP proxyIP broker RackdogCogent Communications, LLC
149.51.208.0/20
since Nov 2025
AS7029Unknown2,30456%ISP proxyIP broker RackdogCogent Communications, LLC
149.51.208.0/24
since Dec 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.210.0/24
since Nov 2025
AS7029ISP proxyIP broker RackdogCogent Communications, LLC
149.51.211.0/24
since Feb 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.212.0/24
since May 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.213.0/24
since Apr 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.214.0/24
since Jun 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.215.0/24
since Feb 2023
AS399296HostingIP broker RackdogCogent Communications, LLC
149.51.224.0/24
since Jan 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.225.0/24
since May 2024
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.226.0/24
since Jan 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.227.0/24
since Jan 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.228.0/24
since Dec 2023
AS399296HostingIP broker RackdogCogent Communications, LLC
149.51.229.0/24
since Jan 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.230.0/24
since Mar 2024
AS399296HostingIP broker RackdogCogent Communications, LLC
149.51.231.0/24
since Feb 2023
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.232.0/21
since Feb 2023
AS7029Unknown25613%ISP proxyIP broker RackdogCogent Communications, LLC
149.51.232.0/24
since Feb 2026
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.233.0/24
since Feb 2026
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.234.0/24
since Feb 2026
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.235.0/24
since Mar 2026
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.236.0/24
since Jul 2026
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.238.0/23
since Jan 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.240.0/21
since Feb 2023
AS7029UnknownIP broker RackdogCogent Communications, LLC
149.51.240.0/22
since Feb 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.240.0/24
since May 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.241.0/24
since May 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.242.0/24
since May 2025
AS398465Datacenter proxyProxy providersoperated by Bright DataIP broker RackdogCogent Communications, LLC
149.51.243.0/24
since May 2025
AS398465Datacenter proxyProxy providersoperated by Bright DataIP broker RackdogCogent Communications, LLC
149.51.244.0/22
since Mar 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.245.0/24
since Mar 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.246.0/24
since Mar 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.247.0/24
since Mar 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.248.0/21
since Jul 2024
AS6079Unknown1,02450%ISP proxyIP broker RackdogCogent Communications, LLC
149.51.250.0/24
since Sep 2026
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.251.0/24
since Nov 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.51.254.0/23
since Nov 2025
AS398465HostingIP broker RackdogCogent Communications, LLC

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
149.51.0.0/1665,536COGENT-149-51-16Cogent Communications, LLC (COGC) · USDirect AllocationJan 28, 1992abuse@cogentco.com
└ 149.51.192.0/1816,384RACKDOG-CGNT-NET-12RCN (C11605110) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-149-51-16

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

16,384 addresses
TypeAddressesShareRanges
Hosting7,93648%29
ISP proxyanonymizer7,93648%9
Datacenter proxyanonymizer5123.1%2

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced 149.50.0.0/15

149.50.0.0/15

Routing history

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