LAYER3 INTEL
Get started
Sign in
Data as of Nov 9, 2026

104.247.154.0/23

Anonymizer · ISP proxy

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

Announcement
this exact prefix
RPKI invalid (origin)
Announced by
AS33490
Type
ISP proxy
Recent change
New origin Sep 18, 2026
from AS33490 Comcast Cable Communications, LLC
IPv4 market

Path

Announced by AS33490 since Sep 18, 2026 · 7 wk ago
1 · Holder
Colocation America Corporation
record created Jul 1, 2022 · reallocated to Internet Utilities NA LLC Jan 7, 2025
2 · Leased from
IPXO
for its owner Colocation America Corporation
3 · Announced by
AS33490 Comcast Cable Communications, LLC
since Sep 18, 2026 · 7 wk ago
4 · Use
Proxy providersnamed IPRoyal
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 104.247.154.0/23/24s
IPRoyal
512100%
2
Leased from

IP brokers

NameIn 104.247.154.0/23/24s
IPXO
512100%
2
Leased from

Owners leasing their own space

NameIn 104.247.154.0/23/24s
Colocation America Corporation
512100%
2

Lineage

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

104.247.154.0/23

From the registry to its use

  1. Sep 11, 2020– Jul 14, 2022
    Announced
    AS7029 Windstream Communications LLC
    Internet provider
  2. Jul 1, 2022
    Registry record
    Colocation America Corporation
    Direct Allocation
    104.247.152.0/21
  3. Jul 3, 2022– Nov 8, 2026
    Announced
    AS21769 Colocation America Corporation
    as part of 104.247.152.0/21
    104.247.152.0/21
  4. Feb 23, 2024– May 16, 2024
    Announced
    AS834 IPXO LLC
    Hosting
  5. Jul 28, 2024– Mar 7, 2026
    Announced
    AS33490 Comcast Cable Communications, LLC
    Internet provider
  6. Jan 7, 2025
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    104.247.152.0/22
  7. Mar 5, 2026
    Route object
    AS834 IPXO LLC
    ARIN route object for AS834 IPXO LLC, maintainer MNT-CAC-89
  8. Sep 18, 2026– Nov 8, 2026
    Announced
    AS33490 Comcast Cable Communications, LLC
    Internet provider
  9. today
    Leased from
    IPXO
    IP broker
  10. today
    Used
    IPRoyal
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
104.247.152.0/21
since Jul 2022
AS21769HostingColocation America Corporation
More specific

Announcements inside

PrefixOriginTypeOperatorLeased fromHolderRPKI
104.247.154.0/24
since Jul 2026
AS212609ISP proxyProxy providerssold by IPRoyalIP broker IPXOColocation America Corporation
via Internet Utilities NA LLC
104.247.155.0/24
since Jul 2026
AS212609ISP proxyProxy providerssold by IPRoyalIP broker IPXOColocation America Corporation
via Internet Utilities NA 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
104.247.152.0/212,048CAC-BLOCK42Colocation America Corporation (CAC-89) · USDirect AllocationJul 1, 2022Abuse@colocationamerica.com
└ 104.247.152.0/221,024IPXOIPXO LLC (IL-845) · USReallocatedJul 13, 2022abuse@ipxo.com
└ 104.247.152.0/221,024NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedJan 7, 2025report@abuseradar.com
└ 104.247.154.0/24256NET-104-247-154-0-24unknownReassignedJul 9, 2026report@abuseradar.com
via IPXO
└ 104.247.155.0/24256NET-104-247-155-0-24unknownReassignedJul 9, 2026report@abuseradar.com
via IPXO

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
Colocation America Corporation
Handle
CAC-89
Range
104.247.152.0/21
Registration type
Direct Allocation
Record created
Jul 1, 2022
Reallocated to
Internet Utilities NA LLC (DCL-577)
Reallocated range
104.247.152.0/22
Reallocated
Jan 7, 2025
Origin network

AS33490

US
Name
Comcast Cable Communications, LLC
Type
Internet provider
Registered
Dec 30, 2004
Domain
comcast.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed