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Data as of Nov 8, 2026

66.200.64.0/20

Anonymizer · ISP proxy

RCN · space held by GTT Americas, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS6079
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
GTT Americas, LLC
record created Nov 14, 2001 · reallocated to IPNetZone Nov 7, 2025
2 · Leased from
Rackdog
for its owner GTT Americas, LLC
3 · Announced by
AS6079 RCN
since Nov 2025 · 12 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 66.200.64.0/20/24s
Rackdog
4,096100%
16
Leased from

Owners leasing their own space

NameIn 66.200.64.0/20/24s
GTT Americas, LLC
4,096100%
16

Lineage

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

66.200.64.0/20

From the registry to its use

  1. Nov 14, 2001
    Registry record
    GTT Americas, LLC
    Direct Allocation
    66.200.0.0/16
  2. May 9, 2005– Nov 9, 2007
    Announced
    AS7455 Motorists Mutual Insurance Company
    as part of 66.200.0.0/16
    66.200.0.0/16
  3. Nov 15, 2007– Jan 29, 2024
    Announced
    AS4565 GTT Americas, LLC
    as part of 66.200.0.0/16
    66.200.0.0/16
  4. Jan 18, 2024– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 66.200.0.0/16
    66.200.0.0/16
  5. Nov 7, 2025
    Reallocated
    IPNetZone
    Reallocated
    66.200.64.0/18
  6. Nov 7, 2025
    Route object
    Rackdog
    RADB route object for AS6079 RCN, maintainer MAINT-AS398465
  7. Nov 8, 2025– today
    Announced
    AS6079 RCN
    Internet provider
  8. today
    Leased from
    IPNetZone
    IP broker
  9. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
66.200.0.0/16
since Jan 2024
AS3257Internet providerGTT 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
66.200.0.0/1665,536MEGAPATH-BLK-24GTT Americas, LLC (GAL-104) · USDirect AllocationNov 14, 2001abuse@gtt.net
└ 66.200.64.0/1816,384GTT-CUSTOMERIPNetZone (IPNET-1) · USReallocatedNov 7, 2025ipabuse@unsi.net

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
GTT Americas, LLC
Handle
GAL-104
Range
66.200.0.0/16
Registration type
Direct Allocation
Record created
Nov 14, 2001
Reallocated to
IPNetZone (IPNET-1)
Reallocated range
66.200.64.0/18
Reallocated
Nov 7, 2025
Origin network

AS6079

US
Name
RCN
Type
Internet provider
Registered
Apr 4, 2001
Domain
astound.com
Website
www.astound.com
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed