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Data as of Nov 3, 2026

66.166.0.0/20

Anonymizer · ISP proxy

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

Announcement
this exact prefix
RPKI valid
Announced by
AS22773
Type
ISP proxy
Recent change
New origin Oct 22, 2026
its first announcement on record
IPv4 market

Path

Announced by AS22773 since Oct 22, 2026 · 12 days ago
1 · Holder
GTT Americas, LLC
record created Sep 10, 2001 · reallocated to IPNetZone Sep 25, 2025
2 · Leased from
IPNetZone
for its owner GTT Americas, LLC
3 · Announced by
AS22773 Cox Communications Inc.
since Oct 22, 2026 · 12 days ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 66.166.0.0/20/24s
IPNetZone
4,096100%
16
Leased from

Owners leasing their own space

NameIn 66.166.0.0/20/24s
GTT Americas, LLC
4,096100%
16

Lineage

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

66.166.0.0/20

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. Sep 25, 2025
    Reallocated
    IPNetZone
    Reallocated
    66.166.0.0/16
  5. Oct 22, 2026– Nov 2, 2026
    Announced
    AS22773 Cox Communications Inc.
    Internet provider

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
66.166.0.0/15
since Apr 2023
AS3257Internet provider3GTT Americas, LLC
Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

Arrived
PrefixOriginTypeLeased fromHolderRPKI
66.166.0.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.1.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.2.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.3.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.4.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.5.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.6.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.7.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.8.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.9.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.10.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.11.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.12.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.13.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.14.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.15.0/24
since Sep 2025
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone

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]
└ 66.166.0.0/1665,536GTT-CUSTOMERIPNetZone (IPNET-1) · USReallocatedSep 25, 2025[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
IPNetZone (IPNET-1)
Reallocated range
66.166.0.0/16
Reallocated
Sep 25, 2025
Origin network

AS22773

US
Name
Cox Communications Inc.
Type
Internet provider
Registered
Nov 20, 2001
Domain
cox.com
Website
www.cox.com/peering
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed