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Data as of Nov 7, 2026

207.251.0.0/19

Anonymizer · ISP proxy

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

Announcement
this exact prefix
No RPKI
Announced by
AS3257
Type
ISP proxy
IPv4 market

Path

1 · Holder
GTT Americas, LLC
record created Nov 20, 1996
2 · Leased from
ARISK, IPNetZone
for its owner GTT Americas, LLC
3 · Announced by
AS3257 GTT Communications Inc.
since Jan 2024 · 2.8 yr ago
4 · Use
Proxy providersnamed Novada
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 207.251.0.0/19/24s
Novada
2563.1%
1
Leased from

IP brokers

NameIn 207.251.0.0/19/24s
ARISK
4,09650%
16
IPNetZone
4,09650%
16
Leased from

Owners leasing their own space

NameIn 207.251.0.0/19/24s
GTT Americas, LLC
8,192100%
32

Lineage

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

207.251.0.0/19

From the registry to its use

  1. Nov 20, 1996
    Registry record
    GTT Americas, LLC
    Direct Allocation (legacy, pre-1997)
    207.251.0.0/19
  2. May 9, 2005– Nov 9, 2007
    Announced
    AS7455 Motorists Mutual Insurance Company
    Business
  3. Nov 15, 2007– Jan 29, 2024
    Announced
    AS4565 GTT Americas, LLC
    Internet provider
  4. Jan 18, 2024– today
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  5. Apr 11, 2025
    Route object
    AS3257 GTT Communications Inc.
    RADB route object for AS3257 GTT Communications Inc., maintainer MAINT-AS3257
  6. May 7, 2025
    Route object
    AS3257 GTT Communications Inc.
    ARIN route object for AS3257 GTT Communications Inc., maintainer MNT-GAL-104
  7. Nov 27, 2025
    Route object
    AS6079 RCN
    ARIN route object for AS6079 RCN, maintainer MNT-GAL-104
    207.251.16.0/20
  8. today
    Used
    Novada
    Proxy seller

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
PrefixOriginTypeOperatorLeased fromHolderRPKI
207.251.0.0/24
since Apr 2026
AS401783ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.1.0/24
since Jul 2026
AS2914ISP proxyProxy providerssold by NovadaIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.2.0/24
since Apr 2026
AS401783ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.3.0/24
since Jul 2026
AS2914ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.4.0/24
since Jul 2026
AS2914ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.5.0/24
since Apr 2026
AS401783ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.6.0/24
since Jul 2026
AS2914ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.7.0/24
since Jul 2026
AS2914ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.8.0/24
since May 2026
AS63099ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.9.0/24
since Apr 2026
AS401783ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.10.0/24
since Jul 2026
AS2914ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.11.0/24
since Aug 2026
AS401783ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.12.0/24
since Apr 2026
AS9304ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.13.0/24
since Jul 2026
AS2914ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.14.0/24
since Apr 2026
AS401783ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.15.0/24
since Jul 2026
AS2914ISP proxyIP broker ARISKGTT Americas, LLC
via Arisk Communications inc.
207.251.16.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.17.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.18.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.19.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.20.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.21.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.22.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.23.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.24.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.25.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.26.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.27.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.28.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.29.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.30.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone
207.251.31.0/24
since Dec 2025
AS6079ISP proxyIP broker IPNetZoneGTT Americas, LLC
via IPNetZone

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
207.251.0.0/198,192MEGAPATH-BLK-29GTT Americas, LLC (GAL-104) · USDirect AllocationNov 20, 1996abuse@gtt.net
└ 207.251.0.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.0.0/24256GTTTokala Communications Inc. (C11437807) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.1.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.1.0/24256GTTTokala Communications Inc. (C11437808) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.2.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.2.0/24256GTTTokala Communications Inc. (C11437809) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.3.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.3.0/24256GTTTokala Communications Inc. (C11437811) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.4.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.4.0/24256GTTTokala Communications Inc. (C11437814) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.5.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.5.0/24256GTTTokala Communications Inc. (C11437843) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.6.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.6.0/24256GTTunknownReassignedMar 8, 2026support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.7.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.7.0/24256GTTTokala Communications Inc. (C11438320) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.8.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.8.0/24256GTTTokala Communications Inc. (C11438321) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.9.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.9.0/24256GTTTokala Communications Inc. (C11438322) · USReassignedDec 2, 2025support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.10.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.10.0/24256GTTunknownReassignedMar 8, 2026support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.11.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.11.0/24256GTTunknownReassignedJan 12, 2026support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.12.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.12.0/24256GTTunknownReassignedJan 12, 2026support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.13.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.13.0/24256GTTunknownReassignedJan 12, 2026support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.14.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.14.0/24256GTTunknownReassignedJan 12, 2026support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.15.0/24256GTT-ARISK-NETArisk Communications inc. (AC-5396) · USReallocatedDec 2, 2025support@ariskisp.com
└ 207.251.15.0/24256GTTunknownReassignedJan 12, 2026support@ariskisp.com
via GTT-ARISK-NET
└ 207.251.16.0/204,096GTT-CUSTOMERIPNetZone (IPNET-1) · USReallocatedNov 27, 2025ipabuse@unsi.net

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
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