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Data as of Nov 3, 2026

199.12.0.0/24

Anonymizer · ISP proxy

Cox Communications Inc. · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS22773
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Sep 28, 2026
its first announcement on record
IPv4 market

Path

Announced by AS22773 since Sep 28, 2026 · 5 wk ago
1 · Holder
Cogent Communications, LLC
record created Sep 24, 1993
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS22773 Cox Communications Inc.
since Sep 28, 2026 · 5 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 199.12.0.0/24/24s
Rackdog
256100%
1
Leased from

Owners leasing their own space

NameIn 199.12.0.0/24/24s
Cogent Communications, LLC
256100%
1

Lineage

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

199.12.0.0/24

From the registry to its use

  1. Sep 24, 1993
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    199.11.0.0 - 199.14.255.255
  2. May 27, 2026
    Assigned
    RCN
    Reassigned
    199.12.0.0/16
  3. Sep 28, 2026– Nov 2, 2026
    Announced
    AS22773 Cox Communications Inc.
    as part of 199.12.0.0/16
    199.12.0.0/16
  4. Sep 28, 2026– Nov 2, 2026
    Announced
    AS22773 Cox Communications Inc.
    Internet provider
  5. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesLeased fromProxy exitsHolderRPKI
199.12.0.0/16
since Sep 28, 2026
AS22773ISP proxy24,32037%IP broker Rackdog1Cogent 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
199.11.0.0 - 199.14.255.255262,144COGCCogent Communications, LLC (COGC) · USDirect AllocationSep 24, 1993[email protected]
└ 199.12.0.0/1665,536RACKDOG-CGNT-NET-19RCN (C11605117) · USReassignedMay 27, 2026[email protected]
via COGC

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
199.11.0.0 - 199.14.255.255
Registration type
Direct Allocation
Record created
Sep 24, 1993
Legacy
yes
Origin network

AS22773

US
Name
Cox Communications Inc.
Type
Internet provider
Registered
Nov 20, 2001
Domain
cox.com
Website
www.cox.com/peering
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed