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Data as of Nov 5, 2026

149.51.149.0/24

No anonymizer space · no proxy exits in 30 days

Rackdog, LLC · space held by Cogent Communications, LLC

Announcement
149.51.148.0/23
No RPKI
Announced by
AS398465
Type
Hosting
Risk
50 / 100 · Medium
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Jan 28, 1992
2 · Leased from
Rackdog
3 · Announced by
AS398465 Rackdog, LLC
since Jul 2023 · 3.3 yr ago
4 · Use
Hosting

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromProxy exitsHolderRPKI
149.51.128.0/18
since Dec 2025
AS398465HostingIP broker RackdogCogent Communications, LLC
149.50.0.0/15
since Sep 2006
AS174Internet providerIP broker Rackdog (part)3,357
962 always on

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
└ 149.51.128.0/1816,384RACKDOG-CGNT-NET-11RCN (C11605109) · 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.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 149.51.148.0/23

Prefix
149.51.148.0/23
Announced by
AS398465 Rackdog, LLC
Type
Hosting
Leased from
IP broker Rackdog
RPKI
No RPKI
Netname
RACKDOG-CGNT-NET-11
Registrant
RCN
RIR
ARIN
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