Data as of Nov 13, 2026

66.166.0.0/16

65,280 anonymizer addresses · >99% · ISP proxy1 residential-proxy exit · 30 days

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

Announcement
No RPKI
Announced by
Type
ISP proxy
>99% of it

Residential-proxy exits

Proxy exits
1
<0.01% of its addresses · 30 days
Spread
1 of 256
/24s with at least one exit
Providers
1
selling exits here
Oct 14, 2026 – Nov 12, 2026

Exits seen per day

1 observation

Proxy providers listing exits

  • GSocks
IPv4 market

Path

1 · Holder
record created Sep 10, 2001
2 · Leased from
for its owner GTT Americas, LLC
3 · Announced by
AS3257 GTT Communications Inc.
since Apr 2023 · 3.5 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 66.166.0.0/16/24s
IPNetZone
61,44094%
240
Leased from

Owners leasing their own space

NameIn 66.166.0.0/16/24s
GTT Americas, LLC
65,280>99%
255

Announcements

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
PrefixOriginTypeAnonymizer addressesLeased fromProxy exitsHolderRPKI
66.166.0.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.16.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.32.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.48.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.64.0/20
since Oct 22, 2026
AS22773Unknown3,84094%ISP proxyIP broker IPNetZone1GTT Americas, LLC
via IPNetZone
66.166.80.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.96.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.112.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.128.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.144.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.160.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.164.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.168.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.172.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.176.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.180.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.184.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.188.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.192.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.196.0/22
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.200.0/21
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.208.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.224.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
66.166.240.0/20
since Oct 22, 2026
AS22773ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
66.166.0.0/15131,072MEGAPATH-BLK-55GTT Americas, LLC (GAL-104) · USDirect AllocationSep 10, 2001abuse@gtt.net
└ 66.166.0.0/1665,536GTT-CUSTOMERIPNetZone (IPNET-1) · USReallocatedSep 25, 2025ipabuse@unsi.net

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

65,536 addresses
TypeAddressesShareRanges
ISP proxyanonymizer65,280>99%30
Unknown2560.39%1

Network & registry

Routing timeline

Who has announced 66.166.0.0/15

66.166.0.0/15

Routing history

Pattern
Rotating
First seen
May 2005
Current origin since
Apr 2023 · 3.5 yr
Origin networks
2
Last change of origin
Apr 2023
Recorded history

History

Handoffs
1