LAYER3 INTEL
Get started
TripwireIntel APIIP IntelPricingBlogDocsContactSign in
Data as of Nov 3, 2026

149.51.210.0/24

Anonymizer · ISP proxy

Windstream Communications LLC · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS7029
Type
ISP proxy
Risk
90 / 100 · Critical
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
AS7029 Windstream Communications LLC
since Nov 2025 · 12 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 149.51.210.0/24/24s
Rackdog
256100%
1
Leased from

Owners leasing their own space

NameIn 149.51.210.0/24/24s
Cogent Communications, LLC
256100%
1

Lineage

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

149.51.210.0/24

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. Feb 16, 2023– Feb 27, 2023
    Announced
    AS22333 AB E-Commerce, LLC
  3. Feb 16, 2023– Dec 12, 2023
    Announced
    AS980 Northern Cable and Fiber, LLC
  4. Dec 1, 2023– Nov 19, 2025
    Announced
    AS7018 AT&T Enterprises, LLC
    as part of 149.51.208.0/20
    149.51.208.0/20
  5. Nov 8, 2025– Nov 2, 2026
    Announced
    AS7029 Windstream Communications LLC
    as part of 149.51.208.0/20
    149.51.208.0/20
  6. Nov 8, 2025– Nov 2, 2026
    Announced
    AS7029 Windstream Communications LLC
    Internet provider
  7. May 27, 2026
    Assigned
    RCN
    Reassigned
    149.51.192.0/18
  8. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesLeased fromProxy exitsHolderRPKI
149.51.208.0/20
since Nov 2025
AS7029ISP proxy2,30456%IP broker RackdogCogent Communications, LLC
149.50.0.0/15
since Sep 2006
AS174Internet providerIP broker Rackdog (part)3,385
978 always on

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, 1992[email protected]
└ 149.51.192.0/1816,384RACKDOG-CGNT-NET-12RCN (C11605110) · USReassignedMay 27, 2026[email protected]
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.

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

AS7029

US
Name
Windstream Communications LLC
Type
Internet provider
Registered
Jul 30, 1996
Domain
uniti.com
Website
www.uniti.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed