Data as of Nov 9, 2026

174.140.228.0/23

Anonymizer · ISP proxy

Comcast Cable Communications, LLC · space held by Colocation America Corporation

Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
record created Dec 1, 2008 · reallocated to IPXO LLC Oct 16, 2025
2 · Leased from
3 · Announced by
AS7922 Comcast Cable Communications, LLC
since Jul 2024 · 2.3 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 174.140.228.0/23/24s
IPXO
512100%
2
Leased from

Owners leasing their own space

NameIn 174.140.228.0/23/24s
Colocation America Corporation
512100%
2

Lineage

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

174.140.228.0/23

From the registry to its use

  1. Dec 1, 2008
    Registry record
    Colocation America Corporation
    Direct Allocation
    174.140.192.0/18
  2. Jul 15, 2011– Nov 18, 2016
    Announced
    AS47013 Colocation America Corporation
    as part of 174.140.224.0/19
    174.140.224.0/19
  3. Nov 7, 2016– today
    Announced
    AS17252 Colocation America Corporation
    as part of 174.140.224.0/19
    174.140.224.0/19
  4. Jul 16, 2024– today
    Announced
    AS7922 Comcast Cable Communications, LLC
    Internet provider
  5. Oct 16, 2025
    Reallocated
    IPXO LLC
    Reallocated
    174.140.228.0/22
  6. today
    Route object
    IPXO
    RADB route object for AS7922 Comcast Cable Communications, LLC, maintainer MAINT-AS834
  7. today
    Leased from
    IPXO
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromHolderRPKI
174.140.224.0/19
since Nov 2016
AS17252HostingIP broker IPXO (part)Colocation America Corporation
174.140.192.0/18
since Jul 2026
AS21769HostingColocation America Corporation

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
174.140.192.0/1816,384CAC-BLOCK6Colocation America Corporation (CAC-89) · USDirect AllocationDec 1, 2008Abuse@colocationamerica.com
└ 174.140.228.0/221,024IPXOIPXO LLC (IL-845) · USReallocatedOct 16, 2025abuse@ipxo.com

Network & registry

IPv4 market

Holder

Organization
Colocation America Corporation
Handle
CAC-89
Range
174.140.192.0/18
Registration type
Direct Allocation
Record created
Dec 1, 2008
Reallocated to
IPXO LLC (IL-845)
Reallocated range
174.140.228.0/22
Reallocated
Oct 16, 2025
Origin network

AS7922

US
Name
Comcast Cable Communications, LLC
Type
Internet provider
Registered
Feb 14, 1997
Domain
comcast.com
Website
corporate.comcast.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed