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Data as of Nov 5, 2026

149.51.240.0/22

512 anonymizer addresses · 50% · Datacenter proxy1 residential-proxy exit · 30 days

Rackdog, LLC · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS398465
Type
Datacenter proxy
50% of it

Residential-proxy exits

Proxy exits
1
0.10% of its addresses · 30 days
Oct 6, 2026 – Nov 4, 2026

Exits seen per day

229 observations
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Jan 28, 1992
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS398465 Rackdog, LLC
since Feb 2025 · 21 mo ago
4 · Use
Proxy providersnamed Bright Data
Datacenter proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 149.51.240.0/22/24s
Bright Data
51250%
2
Leased from

IP brokers

NameIn 149.51.240.0/22/24s
Rackdog
51250%
2
Leased from

Owners leasing their own space

NameIn 149.51.240.0/22/24s
Cogent Communications, LLC
51250%
2

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

149.51.240.0/22

From the registry to its use

  1. Jan 28, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    149.51.0.0/16
  2. May 28, 2022– Aug 7, 2022
    Announced
    AS398465 Rackdog, LLC
    as part of 149.51.240.0/21
    149.51.240.0/21
  3. Oct 19, 2022– Feb 15, 2023
    Announced
    AS399928 Paulding Putnam Electric Trust, Inc.
    as part of 149.51.240.0/21
    149.51.240.0/21
  4. Feb 4, 2023– today
    Announced
    AS7029 Windstream Communications LLC
    as part of 149.51.240.0/21
    149.51.240.0/21
  5. Feb 17, 2025– today
    Announced
    AS398465 Rackdog, LLC
    Hosting
  6. May 27, 2026
    Assigned
    RCN
    Reassigned
    149.51.192.0/18
  7. today
    Leased from
    Rackdog
    IP broker
  8. today
    Used
    Bright Data
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
149.51.240.0/21
since Feb 2023
AS7029UnknownIP broker RackdogCogent Communications, LLC
149.50.0.0/15
since Sep 2006
AS174Internet providerIP broker Rackdog (part)3,357
962 always on
More specific

Announcements inside

PrefixOriginTypeOperatorLeased fromHolderRPKI
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

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, 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

1,024 addresses
TypeAddressesShareRanges
Datacenter proxyanonymizer51250%2
Hosting51250%2

Network & registry

AnnouncementRouting historyWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
149.51.0.0/16
Registration type
Direct Allocation
Record created
Jan 28, 1992
Legacy
yes
Origin network

AS398465

US
Name
Rackdog, LLC
Type
Hosting
Registered
Jun 15, 2020
Domain
rackdog.com
Website
rackdog.com
Spamhaus ASN-DROP
not listed