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Data as of Nov 3, 2026

194.77.76.0/23

Anonymizer · ISP proxy

GTT Communications Inc.

Announcement
194.77.72.0/21
No RPKI
Announced by
AS3257
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
GTT Communications Inc.
record created Mar 31, 2021
2 · Leased from
IPXO
3 · Announced by
AS3257 GTT Communications Inc.
since Oct 2023 · 3.1 yr ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 194.77.76.0/23/24s
IPXO
512100%
2

Registrations in this block

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

RangeAddressesNetnameHolderTypeCreatedAbuse contact
194.77.66.0 - 194.77.85.2555,120US-GTTCOMMUNICATIONS-19951016GTT Communications Inc. (ORG-GCI2-RIPE) · USALLOCATED PAMar 31, 2021[email protected]
└ 194.77.76.0/23512IPXO-GTTunknownSUB-ALLOCATED PAApr 29, 2026[email protected]
└ 194.77.76.208/2816kuppinger-netMartin KuppingerASSIGNED PAApr 2, 2004[email protected]
via IPXO-GTT
└ 194.77.77.80/298k2l-netK2L GmbHASSIGNED PAJul 5, 2004[email protected]
via IPXO-GTT

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Announced by

Covering announcement 194.77.72.0/21

Prefix
194.77.72.0/21
Announced by
AS3257 GTT Communications Inc.
Type
Internet provider
Anonymizer addresses
512 addresses · 25%ISP proxy
Leased from
IP broker IPXO (part)
RPKI
No RPKI
Netname
US-GTTCOMMUNICATIONS-19951016
Registrant
GTT Communications Inc.
RIR
RIPE NCC
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
244