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Data as of Nov 7, 2026

173.211.42.0/24

No anonymizer space · no proxy exits in 30 days

Aiyun (HK) Network · space held by Colocation America Corporation

Announcement
this exact prefix
RPKI valid
Announced by
AS152672
Type
Hosting
Risk
50 / 100 · Medium
IPv4 market

Path

1 · Holder
Colocation America Corporation
record created Oct 5, 2009 · reallocated to Internet Utilities NA LLC Jan 7, 2025
2 · Leased from
IPXO
3 · Announced by
AS152672 Aiyun (HK) Network
since Jun 2025 · 16 mo ago
4 · Use
Hosting

Lineage

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

173.211.42.0/24

From the registry to its use

  1. Oct 5, 2009
    Registry record
    Colocation America Corporation
    Direct Allocation
    173.211.0.0/17
  2. May 15, 2010– Apr 15, 2011
    Announced
    AS4436 GTT Americas, LLC
    as part of 173.211.0.0/17
    173.211.0.0/17
  3. Aug 1, 2011– today
    Announced
    AS21769 Colocation America Corporation
    as part of 173.211.0.0/17
    173.211.0.0/17
  4. May 4, 2022– Jun 28, 2025
    Announced
    AS396073 Majestic Hosting Solutions, LLC
    Hosting
  5. Jan 7, 2025
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    173.211.42.0/23
  6. Jan 7, 2025
    Assigned
    Internet Utilities NA LLC
    Reassigned
    173.211.42.0/24
  7. Jun 29, 2025– today
    Announced
    AS152672 Aiyun (HK) Network
    Hosting
  8. Jun 30, 2025
    Route object
    IPXO
    ARIN route object for AS63023 GTHost, maintainer MNT-DCL-577
  9. Jun 30, 2025
    Route object
    IPXO
    ARIN route object for AS142111 Zhejiang Aiyun Network Technology Co Ltd, maintainer MNT-DCL-577
  10. Jun 30, 2025
    Route object
    IPXO
    ARIN route object for AS152672 Aiyun (HK) Network, maintainer MNT-DCL-577
  11. Jun 30, 2025
    Route object
    IPXO
    RADB route object for AS152672 Aiyun (HK) Network, maintainer MAINT-AS834
  12. Jul 1, 2025
    Route object
    IPXO
    RADB route object for AS63023 GTHost, maintainer MAINT-AS834
  13. Jul 1, 2025
    Route object
    IPXO
    RADB route object for AS142111 Zhejiang Aiyun Network Technology Co Ltd, maintainer MAINT-AS834
  14. today
    Leased from
    IPXO
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromHolderRPKI
173.211.0.0/17
since Aug 2011
AS21769HostingIP 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
└ 173.211.42.0/23512IL-845IPXO LLC (IL-845) · USReallocatedNov 25, 2021abuse@ipxo.com
└ 173.211.42.0/23512NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedJan 7, 2025report@abuseradar.com
└ 173.211.42.0/24256NET-173-211-42-0unknownReassignedJan 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
173.211.42.0/23
Reallocated
Jan 7, 2025
Origin network

AS152672

CN
Name
Aiyun (HK) Network
Type
Hosting
Registered
Mar 28, 2024
Domain
iaclouds.com
Website
iaclouds.com
Industry
Computer and Information Technology
Spamhaus ASN-DROP
not listed