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Data as of Nov 9, 2026

66.171.224.0/20

No anonymizer space · no proxy exits in 30 days

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

Announcement
this exact prefix
No RPKI
Announced by
AS3257
Type
Internet provider
94% of it

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
66.171.224.0/204,096GTT-ARIN-BLK3GTT Americas, LLC (GAL-104) · USDirect AllocationFeb 1, 2011abuse@gtt.net
└ 66.171.224.0/221,024GTT-GTTunknown———
└ 66.171.228.0/23512GTT-GTTunknown———
└ 66.171.230.0/24256NLYR-66-171-230-0-1unknown———
└ 66.171.231.0/24256NLYR-66-171-231-0-24unknown———
└ 66.171.232.0/24256GTT-GTTunknown———
└ 66.171.233.0/24256NLYR-66-171-233-0-24unknown———
└ 66.171.234.0/24256GTT-GTTunknown———
└ 66.171.235.0/24256GTT-GTTunknown———
└ 66.171.236.0/24256GTT-FOREN-DATAunknown———
└ 66.171.237.0/24256GTT-GTTunknown———
└ 66.171.238.0/23512NLYR-66-171-238-0-23unknown———

Composition

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

Announced space

Address share

Announced space

Types across the prefix

4,096 addresses
TypeAddressesShareRanges
Internet provider3,84094%2
Hosting2566.3%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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
239