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Data as of Nov 6, 2026

217.145.112.0/20

No anonymizer space · no proxy exits in 30 days

GTT Communications Inc. · space held by GTT - EMEA Ltd.

Announcement
this exact prefix
No RPKI
Announced by
AS3257
Type
Residential
69% of it

Announcements

More specific

Announcements inside

PrefixOriginTypeHolderRPKI
217.145.124.0/24
since Nov 2019
AS8190ResidentialGTT - EMEA Ltd.
217.145.125.0/24
since Nov 2019
AS8190ResidentialGTT - EMEA Ltd.
217.145.126.0/24
since Nov 2019
AS8190ResidentialGTT - EMEA Ltd.
217.145.127.0/24
since Nov 2019
AS8190ResidentialGTT - EMEA Ltd.

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
217.145.112.0/204,096UK-EASYNET-20040406GTT - EMEA Ltd. (ORG-EA49-RIPE) · GBALLOCATED PAApr 6, 2004abuse@gtt.net
└ 217.145.112.0/2816INTERDART-UKControl Power/vlan Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.112.16/2816INTERDART-UKNetwork Management and Workstations Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.112.32/2732INTERDART-UKInterdart Servers - Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.112.64/2664INTERDART-UKCustomer vlan Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.112.128/2664INTERDART-UKCustomer Server subnet LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.112.192/2664INTERDART-UKCustomer Server vlan LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.0/298INTERDART-UKDevelopment Subnet Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.8/298INTERDART-UKCustomer Server Subnet Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.16/298INTERDART-UKCustomer Lease Line Lan Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.24/298INTERDART-UKCustomer Lease Line /30 subnetsASSIGNED PANov 23, 2011abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.32/2816INTERDART-UKCustomer Lease Line /30 subnets Berkhamsted OfficeASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.48/2816INTERDART-UKCore management LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.64/2816INTERDART-UKADSL management LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.80/2816INTERDART-UKBackbone LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.96/2816INTERDART-UKInterdart Servers LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.112/2816INTERDART-UKCustomer Subnets Berkhamsted OfficeASSIGNED PANov 23, 2011abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.113.128/25128INTERDART-UKCustomer Lease subnetsASSIGNED PANov 23, 2011abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.114.0/25128INTERDART-UKNew Win2003 customer servers LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.114.128/25128INTERDART-UKVPN Tunnelled Servers LondonASSIGNED PAApr 27, 2009abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.115.0 - 217.145.116.255512INTERDART-UK-P2P-POOLMDNX Limited, p2p connectionsASSIGNED PAJul 25, 2011abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.117.0/24256UK-VODA-POOL-DSL-TLHMDNX IP EngineeringASSIGNED PAJul 25, 2011abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.118.1 - 217.145.119.255511UK-VODA-POOL-DSL-EGHMDNX IP EngineeringASSIGNED PAJul 25, 2011abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.120.0/221,024INTERDART-UKCI-Net Limited, ADSL connectionsASSIGNED PAJul 25, 2011abuse@gtt.net
via UK-EASYNET-20040406
└ 217.145.124.0/221,024UK-VODA-POOL-DSL-TLHMDNX IP EngineeringASSIGNED PAJul 25, 2011abuse@gtt.net
via UK-EASYNET-20040406

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

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
Residential2,81569%7
Business76819%19
Internet provider51313%2

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
244