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Data as of Nov 3, 2026

66.167.206.0/23

Anonymizer · ISP proxy

GTT Communications Inc. · space held by GTT Americas, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS3257
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Aug 2026
its first announcement on record
registry: reallocated to RCN by GTT Americas, LLC, Sep 25, 2026
IPv4 market

Path

Reallocated to RCN · Sep 25, 2026 · 6 wk ago · by GTT Americas, LLC
1 · Holder
GTT Americas, LLC
record created Sep 10, 2001 · reallocated to RCN Sep 25, 2026
2 · Leased from
IPNetZone
3 · Announced by
AS3257 GTT Communications Inc.
since Aug 2026 · 10 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Lineage

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

66.167.206.0/23

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. Apr 29, 2023– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 66.166.0.0/15
    66.166.0.0/15
  4. Jul 31, 2026
    Route object
    AS3257 GTT Communications Inc.
    ARIN route object for AS3257 GTT Communications Inc., maintainer MNT-GAL-104
  5. Aug 23, 2026– today
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  6. Sep 25, 2026
    Reallocated
    RCN
    Reallocated
    66.167.206.0/23
  7. today
    Leased from
    IPNetZone
    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]
└ 66.167.206.0/23512GTT-CUSTOMERIPNetZone (IPNET-1) · USReallocatedJul 31, 2026[email protected]
└ 66.167.206.0/23512RCN-GTTRCN (RTSL-6) · USReallocatedSep 25, 2026[email protected]

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
RCN (RTSL-6)
Reallocated range
66.167.206.0/23
Reallocated
Sep 25, 2026
Origin network

AS3257

US
Name
GTT Communications Inc.
Type
Internet provider
Registered
Sep 30, 1994
Domain
gtt.net
Website
www.gtt.net
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
244