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Data as of Nov 3, 2026

66.166.181.0/24

Anonymizer · ISP proxy

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

Announcement
this exact prefix
RPKI valid
Announced by
AS22773
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

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 Sep 2025 · 13 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 66.166.181.0/24/24s
IPNetZone
256100%
1
Leased from

Owners leasing their own space

NameIn 66.166.181.0/24/24s
GTT Americas, LLC
256100%
1

Lineage

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

66.166.181.0/24

From the registry to its use

  1. Sep 10, 2001
    Registry record
    GTT Americas, LLC
    Direct Allocation
    66.166.0.0/15
  2. May 26, 2020– Feb 22, 2024
    Announced
    AS18566 GTT Americas, LLC
  3. Sep 21, 2025– Nov 2, 2026
    Announced
    AS22773 Cox Communications Inc.
    Internet provider
  4. Sep 25, 2025
    Reallocated
    IPNetZone
    Reallocated
    66.166.0.0/16
  5. Oct 22, 2026– Nov 2, 2026
    Announced
    AS22773 Cox Communications Inc.
    as part of 66.166.180.0/22
    66.166.180.0/22
  6. today
    Leased from
    IPNetZone
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
66.166.180.0/22
since Oct 22, 2026
AS22773UnknownGTT Americas, LLC
via IPNetZone
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]
└ 66.166.0.0/1665,536GTT-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