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Data as of Nov 15, 2026

205.237.88.0/21

2 anonymizer addresses · 0.10% · Datacenter proxy

Colocation America Corporation

Announcement
this exact prefix
RPKI valid
Announced by
AS21769
Type
Hosting
63% of it
Recent change
New origin Jul 2026
from AS21769 Colocation America Corporation, after 1.2 years unannounced
IPv4 market

Path

Announced by AS21769 since Jul 2026 · 4 mo ago
1 · Holder
Colocation America Corporation
record created Jan 21, 2025
2 · Leased from
IPXO
3 · Announced by
AS21769 Colocation America Corporation
since Jul 2026 · 4 mo ago
4 · Use
Hosting
anonymizer space, operator not named

Lineage

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

205.237.88.0/21

From the registry to its use

  1. Oct 22, 2008– Jun 27, 2016
    Announced
    AS46370 Grand Web Solutions, Inc.
    Hosting
  2. Aug 15, 2016– Jan 12, 2018
    Announced
    AS46370 Grand Web Solutions, Inc.
    Hosting
  3. Jan 21, 2025
    Registry record
    Colocation America Corporation
    ALLOCATED PA
    205.237.88.0/21
  4. Feb 5, 2025– May 11, 2025
    Announced
    AS21769 Colocation America Corporation
    Hosting
  5. May 28, 2025
    Route object
    IPXO
    RADB route object for AS174 Cogent Communications, LLC, maintainer MAINT-AS834
    205.237.92.0/23
  6. May 28, 2025
    Route object
    IPXO
    RADB route object for AS21949 Beanfield Technologies Inc., maintainer MAINT-AS834
    205.237.92.0/23
  7. May 28, 2025
    Route object
    IPXO
    RADB route object for AS214623 2644819 Ontario Inc, maintainer MAINT-AS834
    205.237.92.0/23
  8. May 28, 2025
    Route object
    IPXO
    RIPE route object for AS174 Cogent Communications, LLC, maintainer NETUTILS-MNT
    205.237.92.0/23
  9. May 28, 2025
    Route object
    IPXO
    RIPE route object for AS21949 Beanfield Technologies Inc., maintainer NETUTILS-MNT
    205.237.92.0/23
  10. May 28, 2025
    Route object
    IPXO
    RIPE route object for AS214623 2644819 Ontario Inc, maintainer NETUTILS-MNT
    205.237.92.0/23
  11. May 28, 2025
    Route object
    IPXO
    RADB route object for AS174 Cogent Communications, LLC, maintainer MAINT-AS834
    205.237.94.0/23
  12. May 28, 2025
    Route object
    IPXO
    RADB route object for AS21949 Beanfield Technologies Inc., maintainer MAINT-AS834
    205.237.94.0/23
  13. May 28, 2025
    Route object
    IPXO
    RADB route object for AS214623 2644819 Ontario Inc, maintainer MAINT-AS834
    205.237.94.0/23
  14. May 28, 2025
    Route object
    IPXO
    RIPE route object for AS174 Cogent Communications, LLC, maintainer NETUTILS-MNT
    205.237.94.0/23
  15. May 28, 2025
    Route object
    IPXO
    RIPE route object for AS21949 Beanfield Technologies Inc., maintainer NETUTILS-MNT
    205.237.94.0/23
  16. May 28, 2025
    Route object
    IPXO
    RIPE route object for AS214623 2644819 Ontario Inc, maintainer NETUTILS-MNT
    205.237.94.0/23
  17. Jun 10, 2026
    Route object
    AS21769 Colocation America Corporation
    RADB route object for AS21769 Colocation America Corporation, maintainer MAINT-AS35916
  18. Jul 6, 2026– today
    Announced
    AS21769 Colocation America Corporation
    Hosting
  19. Oct 26, 2026
    Route object
    IPXO
    RADB route object for AS152606 LINK4 Communication, maintainer MAINT-AS834
    205.237.90.0/24
  20. Oct 26, 2026
    Route object
    IPXO
    RIPE route object for AS152606 LINK4 Communication, maintainer NETUTILS-MNT
    205.237.90.0/24
  21. Nov 7, 2026
    Route object
    IPXO
    RIPE route object for AS152726 Dream Engineering, maintainer NETUTILS-MNT
    205.237.89.0/24
  22. Nov 8, 2026
    Route object
    IPXO
    RADB route object for AS152726 Dream Engineering, maintainer MAINT-AS834
    205.237.89.0/24
  23. Nov 13, 2026
    Route object
    IPXO
    RADB route object for AS834 IPXO LLC, maintainer MAINT-AS834
    205.237.88.0/24
  24. today
    Leased from
    IPXO
    IP broker

Announcements

More specific

Announcements inside

PrefixOriginTypeAnonymizer addressesLeased fromHolderRPKI
205.237.91.0/24
since Oct 29, 2026
AS136809HostingIP broker IPXOColocation America Corporation
via Internet Utilities Europe and Asia Limited
205.237.92.0/24
since Sep 2025
AS214623Unknown20.78%Datacenter proxyIP broker IPXOColocation America Corporation
via Colocation America Corporation
205.237.94.0/24
since Jun 2025
AS214623UnknownIP broker IPXOColocation America Corporation
via Colocation America Corporation
205.237.95.0/24
since Jun 2025
AS21949UnknownIP broker IPXOColocation America Corporation
via 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
205.237.88.0/212,048US-COLOCATION-20081014Colocation America Corporation (ORG-CAC5-RIPE) · USALLOCATED PAJan 21, 2025Abuse@ColocationAmerica.com
└ 205.237.88.0/221,024HGC-Global-Communications-LimitedInternet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GBSUB-ALLOCATED PAMay 8, 2025report@abuseradar.com
└ 205.237.88.0/24256NET-205-237-88-0-24unknownASSIGNED PANov 13, 2026report@abuseradar.com
via HGC-Global-Communications-Limited
└ 205.237.89.0/24256NET-205-237-89-0-24unknownASSIGNED PANov 7, 2026report@abuseradar.com
└ 205.237.90.0/24256NET-205-237-90-0-24unknownASSIGNED PAOct 26, 2026report@abuseradar.com
└ 205.237.91.0/24256NET-205-237-91-0-24unknownASSIGNED PAOct 27, 2026report@abuseradar.com
└ 205.237.92.0/221,024IPXOColocation America Corporation (ORG-CAC5-RIPE) · USSUB-ALLOCATED PAMay 8, 2025report@abuseradar.com
└ 205.237.92.0/23512NET-205-237-92-0-23unknownASSIGNED PAMay 28, 2025report@abuseradar.com
└ 205.237.94.0/23512NET-205-237-94-0-23unknownASSIGNED PAMay 28, 2025report@abuseradar.com

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

2,048 addresses
TypeAddressesShareRanges
Hosting1,28063%3
Unknown76637%5
Datacenter proxyanonymizer20.10%2

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Reactivated
First seen
Oct 2008
Current origin since
Jul 2026 · 4 mo
Origin networks
2
Last change of origin
Feb 2025
Recorded history

History

Handoffs
1