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Data as of Nov 3, 2026

66.167.142.0/23

Anonymizer · ISP proxy

KEYSTONE · space held by GTT Americas, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS402363
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin May 2026
from AS395793 Arisk Communications inc.
IPv4 market

Path

Announced by AS402363 since May 2026 · 5 mo ago
1 · Holder
GTT Americas, LLC
record created Sep 10, 2001 · reallocated to Arisk Communications inc. Oct 9, 2025
2 · Leased from
ARISK
for its owner GTT Americas, LLC
3 · Announced by
AS402363 KEYSTONE
since May 2026 · 5 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 66.167.142.0/23/24s
ARISK
512100%
2
Leased from

Owners leasing their own space

NameIn 66.167.142.0/23/24s
GTT Americas, LLC
512100%
2

Lineage

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

66.167.142.0/23

From the registry to its use

  1. Sep 10, 2001
    Registry record
    GTT Americas, LLC
    Direct Allocation
    66.166.0.0/15
  2. May 9, 2005– May 15, 2022
    Announced
    AS18566 GTT Americas, LLC
    as part of 66.166.0.0/15
    66.166.0.0/15
  3. May 9, 2005– May 15, 2016
    Announced
    AS18566 GTT Americas, LLC
  4. Apr 29, 2023– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 66.166.0.0/15
    66.166.0.0/15
  5. Oct 3, 2025– Oct 14, 2025
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  6. Oct 9, 2025
    Reallocated
    Arisk Communications inc.
    Reallocated
    66.167.142.0/23
  7. Oct 10, 2025
    Route object
    AS9304 HGC Global Communications Limited
    ARIN route object for AS9304 HGC Global Communications Limited, maintainer MNT-GAL-104
  8. Oct 10, 2025
    Route object
    AS395793 Arisk Communications inc.
    ARIN route object for AS395793 Arisk Communications inc., maintainer MNT-GAL-104
  9. Oct 27, 2025– Jun 11, 2026
    Announced
    AS395793 Arisk Communications inc.
    Hosting
  10. May 19, 2026
    Route object
    AS402363 KEYSTONE
    ARIN route object for AS402363 KEYSTONE, maintainer MNT-GAL-104
  11. May 26, 2026
    Route object
    AS402363 KEYSTONE
    RADB route object for AS402363 KEYSTONE, maintainer MAINT-AS45796
  12. May 31, 2026– today
    Announced
    AS402363 KEYSTONE
    Hosting
  13. today
    Leased from
    ARISK
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
66.166.0.0/15
since Apr 2023
AS3257Internet provider3GTT Americas, 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
66.166.0.0/15131,072MEGAPATH-BLK-55GTT Americas, LLC (GAL-104) · USDirect AllocationSep 10, 2001[email protected]
└ 66.167.142.0/23512GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedOct 9, 2025[email protected]
└ 66.167.142.0/23512GTTunknownReassignedJan 11, 2026[email protected]
via GTT-ARISK-NET

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
GTT Americas, LLC
Handle
GAL-104
Range
66.166.0.0/15
Registration type
Direct Allocation
Record created
Sep 10, 2001
Reallocated to
Arisk Communications inc. (AC-5396)
Reallocated range
66.167.142.0/23
Reallocated
Oct 9, 2025
Origin network

AS402363

US
Name
KEYSTONE
Type
Hosting
Registered
Apr 3, 2026
Domain
keystoneus.net
Spamhaus ASN-DROP
not listed