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Data as of Nov 10, 2026

204.242.224.0/21

Anonymizer · ISP proxy

Wave Broadband · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS11404
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Cogent Communications, LLC
record created Dec 20, 1994
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS11404 Wave Broadband
since Aug 2024 · 2.2 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 204.242.224.0/21/24s
Rackdog
2,048100%
8
Leased from

Owners leasing their own space

NameIn 204.242.224.0/21/24s
Cogent Communications, LLC
2,048100%
8

Lineage

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

204.242.224.0/21

From the registry to its use

  1. Dec 20, 1994
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    204.240.0.0/14
  2. Mar 17, 2022– Nov 9, 2026
    Announced
    AS6079 RCN
    as part of 204.242.224.0/20
    204.242.224.0/20
  3. Nov 7, 2023– Jul 15, 2024
    Announced
    AS7922 Comcast Cable Communications, LLC
    Internet provider
  4. Jun 13, 2024
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
  5. Aug 15, 2024
    Route object
    Rackdog
    RADB route object for AS11404 Wave Broadband, maintainer MAINT-AS398465
  6. Aug 21, 2024– Nov 9, 2026
    Announced
    AS11404 Wave Broadband
    Internet provider
  7. May 27, 2026
    Assigned
    RCN
    Reassigned
    204.242.0.0/16
  8. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesLeased fromHolderRPKI
204.242.224.0/20
since Mar 2022
AS6079ISP proxy2,04850%IP broker RackdogCogent Communications, LLC
204.240.0.0/14
since May 2005
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
204.240.0.0/14262,144COGENT-204-240-14Cogent Communications, LLC (COGC) · USDirect AllocationDec 20, 1994abuse@cogentco.com
└ 204.242.0.0/1665,536RACKDOG-CGNT-NET-33RCN (C11605228) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-204-240-14

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
204.240.0.0/14
Registration type
Direct Allocation
Record created
Dec 20, 1994
Legacy
yes
Origin network

AS11404

US
Name
Wave Broadband
Type
Internet provider
Registered
Mar 28, 2007
Domain
wavebroadband.com
Website
business.wavebroadband.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed