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Data as of Nov 6, 2026

173.211.82.0/23

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
Risk
90 / 100 · Critical
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 Oct 5, 2009 · 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
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 173.211.82.0/23/24s
IPXO
512100%
2
Leased from

Owners leasing their own space

NameIn 173.211.82.0/23/24s
Colocation America Corporation
512100%
2

Lineage

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

173.211.82.0/23

From the registry to its use

  1. Oct 5, 2009
    Registry record
    Colocation America Corporation
    Direct Allocation
    173.211.0.0/17
  2. Sep 27, 2017– Nov 13, 2017
    Announced
    AS56934 Zhemoedov Sergey Mihaylovich
    as part of 173.211.80.0/21
    173.211.80.0/21
  3. Nov 2, 2017– Nov 13, 2017
    Announced
    AS46261 QuickPacket, LLC
    as part of 173.211.80.0/21
    173.211.80.0/21
  4. Nov 28, 2019– Dec 9, 2019
    Announced
    AS46261 QuickPacket, LLC
    as part of 173.211.80.0/21
    173.211.80.0/21
  5. Jul 20, 2021– Jul 31, 2021
    Announced
    AS61317 Hivelocity LLC
    as part of 173.211.80.0/21
    173.211.80.0/21
  6. Sep 18, 2021– Mar 28, 2022
    Announced
    AS22773 Cox Communications Inc.
    as part of 173.211.80.0/21
    173.211.80.0/21
  7. Jun 9, 2022– today
    Announced
    AS22773 Cox Communications Inc.
    as part of 173.211.80.0/21
    173.211.80.0/21
  8. Jun 16, 2023– Aug 2, 2023
    Announced
    AS834 IPXO LLC
    Hosting
  9. Sep 20, 2023– Oct 13, 2023
    Announced
    AS834 IPXO LLC
    Hosting
  10. Oct 14, 2023– Apr 10, 2024
    Announced
    AS63023 GTHost
    Hosting
  11. Apr 23, 2024– May 16, 2024
    Announced
    AS834 IPXO LLC
    Hosting
  12. Jul 28, 2024– Mar 7, 2026
    Announced
    AS33490 Comcast Cable Communications, LLC
    Internet provider
  13. Jan 7, 2025
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    173.211.80.0/21
  14. Jan 7, 2025
    Assigned
    Internet Utilities NA LLC
    Reassigned
    173.211.82.0/23
  15. Mar 5, 2026
    Route object
    AS834 IPXO LLC
    ARIN route object for AS834 IPXO LLC, maintainer MNT-CAC-89
  16. Sep 18, 2026– today
    Announced
    AS33490 Comcast Cable Communications, LLC
    Internet provider
  17. Oct 25, 2026
    Route object
    IPXO
    RADB route object for AS834 IPXO LLC, maintainer MAINT-AS834
  18. today
    Leased from
    IPXO
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromHolderRPKI
173.211.80.0/21
since Jun 2022
AS22773UnknownIP broker IPXOColocation America Corporation
via Internet Utilities NA LLC
173.211.0.0/17
since Aug 2011
AS21769Hosting7,16822%Datacenter proxyProxy providersoperated by OxylabsIP broker IPXO (part)Colocation 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
173.211.0.0/1732,768CAC-BLOCK7Colocation America Corporation (CAC-89) · USDirect AllocationOct 5, 2009Abuse@colocationamerica.com
└ 173.211.80.0/212,048IL-845IPXO LLC (IL-845) · USReallocatedNov 24, 2021abuse@ipxo.com
└ 173.211.80.0/212,048NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedJan 7, 2025report@abuseradar.com
└ 173.211.82.0/23512NET-173-211-82-0-23unknownReassignedJan 7, 2025report@abuseradar.com
via IL-845

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
173.211.0.0/17
Registration type
Direct Allocation
Record created
Oct 5, 2009
Reallocated to
Internet Utilities NA LLC (DCL-577)
Reallocated range
173.211.80.0/21
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