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Data as of Nov 3, 2026

66.78.54.0/23

Anonymizer · ISP proxy

Cogent Communications, LLC · space held by Colocation America Corporation

Announcement
this exact prefix
RPKI invalid (origin)
Announced by
AS174
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
Colocation America Corporation
record created Apr 26, 2016 · reallocated to Internet Utilities NA LLC Apr 27, 2026
2 · Leased from
IPXO
for its owner Colocation America Corporation
3 · Announced by
AS174 Cogent Communications, LLC
since Apr 2026 · 6 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 66.78.54.0/23/24s
IPXO
512100%
2
Leased from

Owners leasing their own space

NameIn 66.78.54.0/23/24s
Colocation America Corporation
512100%
2

Lineage

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

66.78.54.0/23

From the registry to its use

  1. May 9, 2005– Aug 22, 2005
    Announced
    AS17252 Colocation America Corporation
    as part of 66.78.0.0/18
    66.78.0.0/18
  2. Sep 1, 2005– Sep 22, 2005
    Announced
    AS21698 TurboNet
    as part of 66.78.0.0/18
    66.78.0.0/18
  3. Nov 8, 2005– Apr 1, 2007
    Announced
    AS18942 WebHostPlus Inc
    as part of 66.78.0.0/18
    66.78.0.0/18
  4. Sep 15, 2006– Dec 1, 2007
    Announced
    AS31797 Galaxyvisions Inc
    as part of 66.78.0.0/18
    66.78.0.0/18
  5. Jan 15, 2008– Mar 15, 2008
    Announced
    AS17252 Colocation America Corporation
    as part of 66.78.0.0/18
    66.78.0.0/18
  6. Apr 26, 2016
    Registry record
    Colocation America Corporation
    Direct Allocation
    66.78.0.0/18
  7. May 1, 2016– Nov 2, 2026
    Announced
    AS21769 Colocation America Corporation
    as part of 66.78.0.0/18
    66.78.0.0/18
  8. Apr 25, 2026– Nov 2, 2026
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  9. Apr 27, 2026
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    66.78.48.0/21
  10. Apr 27, 2026
    Route object
    IPXO
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-DCL-577
  11. Nov 1, 2026
    Route object
    IPXO
    RADB route object for AS834 IPXO LLC, maintainer MAINT-AS834
  12. today
    Leased from
    IPXO
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromHolderRPKI
66.78.0.0/18
since May 2016
AS21769Hosting5,37633%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
66.78.0.0/1816,384CAC-BLOCK14Colocation America Corporation (CAC-89) · USDirect AllocationApr 26, 2016[email protected]
└ 66.78.48.0/212,048IPXO-LLCIPXO LLC (IL-845) · USReallocatedMar 25, 2026[email protected]
└ 66.78.48.0/212,048NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedApr 27, 2026[email protected]

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Colocation America Corporation
Handle
CAC-89
Range
66.78.0.0/18
Registration type
Direct Allocation
Record created
Apr 26, 2016
Reallocated to
Internet Utilities NA LLC (DCL-577)
Reallocated range
66.78.48.0/21
Reallocated
Apr 27, 2026
Origin network

AS174

US
Name
Cogent Communications, LLC
Type
Internet provider
Registered
May 16, 1996
Domain
cogentco.com
Website
www.cogentco.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
1,658