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Data as of Nov 8, 2026

204.215.64.0/18

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 · 6 wk ago
1 · Holder
Cogent Communications, LLC
record created Dec 11, 1994
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS22773 Cox Communications Inc.
since Sep 28, 2026 · 6 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 204.215.64.0/18/24s
Rackdog
16,384100%
64
Leased from

Owners leasing their own space

NameIn 204.215.64.0/18/24s
Cogent Communications, LLC
16,384100%
64

Lineage

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

204.215.64.0/18

From the registry to its use

  1. Dec 11, 1994
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    204.212.0.0/14
  2. Apr 12, 2001
    Route object
    AS3491 PCCW Global (HK) Ltd.
    RADB route object for AS3491 PCCW Global (HK) Ltd., maintainer MAINT-AS3491
    204.215.80.0/20
  3. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
    as part of 204.212.0.0/14
    204.212.0.0/14
  4. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 204.212.0.0/14
    204.212.0.0/14
  5. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS11404 Wave Broadband, maintainer MAINT-AS398465
    204.215.64.0/20
  6. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS11404 Wave Broadband, maintainer MAINT-AS398465
    204.215.80.0/20
  7. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS11404 Wave Broadband, maintainer MAINT-AS398465
    204.215.96.0/20
  8. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS11404 Wave Broadband, maintainer MAINT-AS398465
    204.215.112.0/20
  9. May 22, 2026
    Route object
    AS20115 Charter Communications LLC
    RADB route object for AS20115 Charter Communications LLC, maintainer MAINT-CHTR-WD
    204.215.64.0/19
  10. May 22, 2026
    Route object
    AS20115 Charter Communications LLC
    RADB route object for AS20115 Charter Communications LLC, maintainer MAINT-CHTR-WD
    204.215.96.0/19
  11. May 27, 2026
    Assigned
    RCN
    Reassigned
    204.215.64.0/18
  12. Sep 28, 2026– today
    Announced
    AS22773 Cox Communications Inc.
    Internet provider
  13. Sep 29, 2026
    Route object
    Rackdog
    RADB route object for AS22773 Cox Communications Inc., maintainer MAINT-AS398465
  14. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
204.212.0.0/14
since May 2024
AS174Internet provider37
2 always on
Cogent 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
204.212.0.0/14262,144COGENT-204-212-0Cogent Communications, LLC (COGC) · USDirect AllocationDec 11, 1994abuse@cogentco.com
└ 204.215.64.0/1816,384RACKDOG-CGNT-NET-32RCN (C11605227) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-204-212-0

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
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
204.212.0.0/14
Registration type
Direct Allocation
Record created
Dec 11, 1994
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