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Data as of Nov 7, 2026

204.183.0.0/20

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
Recently moved
Recent change
New origin Jul 2026
from AS7459 Grande Communications Networks, LLC
IPv4 market

Path

Announced by AS22773 since Jul 2026 · 3 mo ago
1 · Holder
Cogent Communications, LLC
record created Oct 18, 1994
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS22773 Cox Communications Inc.
since Jul 2026 · 3 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 204.183.0.0/20/24s
Rackdog
4,096100%
16
Leased from

Owners leasing their own space

NameIn 204.183.0.0/20/24s
Cogent Communications, LLC
4,096100%
16

Lineage

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

204.183.0.0/20

From the registry to its use

  1. Oct 18, 1994
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    204.180.0.0/14
  2. May 9, 2005– May 16, 2024
    Announced
    AS1239 Cogent Communications, LLC
    as part of 204.180.0.0/14
    204.180.0.0/14
  3. May 5, 2024– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 204.180.0.0/14
    204.180.0.0/14
  4. Aug 16, 2025– Sep 20, 2025
    Announced
    AS11404 Wave Broadband
    Internet provider
  5. Aug 26, 2025
    Route object
    Rackdog
    RADB route object for AS11404 Wave Broadband, maintainer MAINT-AS398465
  6. Sep 9, 2025– Aug 10, 2026
    Announced
    AS7459 Grande Communications Networks, LLC
    Internet provider
  7. Sep 18, 2025
    Route object
    Rackdog
    RADB route object for AS7459 Grande Communications Networks, LLC, maintainer MAINT-AS398465
  8. May 27, 2026
    Assigned
    RCN
    Reassigned
    204.183.0.0/18
  9. Jul 30, 2026– today
    Announced
    AS22773 Cox Communications Inc.
    Internet provider
  10. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
204.180.0.0/14
since May 2024
AS174Internet providerCogent 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
204.180.0.0/14262,144COGENT-204-180-0Cogent Communications, LLC (COGC) · USDirect AllocationOct 18, 1994abuse@cogentco.com
└ 204.183.0.0/1816,384RACKDOG-CGNT-NET-31RCN (C11605226) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-204-180-0

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
204.180.0.0/14
Registration type
Direct Allocation
Record created
Oct 18, 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