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Data as of Nov 10, 2026

185.3.72.0/22

256 anonymizer addresses · 25% · Datacenter proxy

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

Announcement
this exact prefix
No RPKI
Announced by
AS3257
Type
Internet provider
50% of it
IPv4 market

Path

1 · Holder
GTT - EMEA Ltd.
record created Sep 20, 2012
2 · Leased from
IPXO
for its owner GTT - EMEA Ltd.
3 · Announced by
AS3257 GTT Communications Inc.
since Feb 2023 · 3.8 yr ago
4 · Use
Internet provider
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 185.3.72.0/22/24s
IPXO
25625%
1
Leased from

Owners leasing their own space

NameIn 185.3.72.0/22/24s
GTT - EMEA Ltd.
25625%
1

Lineage

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

185.3.72.0/22

From the registry to its use

  1. Sep 20, 2012
    Registry record
    GTT - EMEA Ltd.
    ALLOCATED PA
    185.3.72.0/22
  2. Sep 26, 2012
    Route object
    AS8190 GTT Americas, LLC
    RIPE route object for AS8190 GTT Americas, LLC, maintainer AS8190-MNT
  3. Apr 1, 2013– Feb 15, 2023
    Announced
    AS8190 GTT Americas, LLC
    Internet provider
  4. Feb 4, 2023– today
    Announced
    AS3257 GTT Communications Inc.
    Internet provider
  5. Feb 13, 2023
    Route object
    AS3257 GTT Communications Inc.
    RIPE route object for AS3257 GTT Communications Inc., maintainer AS3257-ROUTE-MNT

Announcements

More specific

Announcements inside

PrefixOriginTypeLeased fromHolderRPKI
185.3.73.0/24
since Aug 2026
AS16276Datacenter proxyIP broker IPXOGTT - EMEA Ltd.
185.3.74.0/24
since Sep 2026
AS40676HostingIP broker IPXOGTT - 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
185.3.72.0/221,024UK-EASYNET-20120920GTT - EMEA Ltd. (ORG-EA49-RIPE) · GBALLOCATED PASep 20, 2012abuse@gtt.net
└ 185.3.73.0/24256NET-185-3-73-0-24unknownSUB-ALLOCATED PAApr 29, 2026report@abuseradar.com
└ 185.3.74.0/24256NET-185-3-74-0-24unknownSUB-ALLOCATED PAApr 29, 2026report@abuseradar.com

Composition

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

Announced space

Address share

Announced space

Types across the prefix

1,024 addresses
TypeAddressesShareRanges
Internet provider51250%2
Datacenter proxyanonymizer25625%1
Hosting25625%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Rotating
First seen
Apr 2013
Current origin since
Feb 2023 · 3.8 yr
Origin networks
2
Last change of origin
Feb 2023
Recorded history

History

Handoffs
1