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Data as of Nov 7, 2026

66.253.87.0/24

Anonymizer · Datacenter proxy

Tngnet B.V. · space held by GTT Americas, LLC

Announcement
this exact prefix
RPKI valid
Announced by
AS39521
Type
Datacenter proxy
Risk
85 / 100 · Critical
Recent change
New origin Nov 3, 2026
from AS174 Cogent Communications, LLC
IPv4 market

Path

Announced by AS39521 since Nov 3, 2026 · 4 days ago
1 · Holder
GTT Americas, LLC
record created Nov 21, 2005 · reallocated to Internet Utilities NA LLC Jul 22, 2025
2 · Leased from
IPXO
for its owner GTT Americas, LLC
3 · Announced by
AS39521 Tngnet B.V.
since Nov 3, 2026 · 4 days ago
4 · Use
Datacenter proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 66.253.87.0/24/24s
IPXO
256100%
1
Leased from

Owners leasing their own space

NameIn 66.253.87.0/24/24s
GTT Americas, LLC
256100%
1

Lineage

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

66.253.87.0/24

From the registry to its use

  1. Nov 21, 2005
    Registry record
    GTT Americas, LLC
    Direct Allocation
    66.253.0.0/17
  2. Jul 8, 2006– Jun 8, 2016
    Announced
    AS23504 GTT Americas, LLC
    as part of 66.253.0.0/17
    66.253.0.0/17
  3. Jun 15, 2016– May 15, 2022
    Announced
    AS18566 GTT Americas, LLC
    as part of 66.253.0.0/17
    66.253.0.0/17
  4. Apr 29, 2023– today
    Announced
    AS3257 GTT Communications Inc.
    as part of 66.253.0.0/17
    66.253.0.0/17
  5. Jul 22, 2025
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    66.253.64.0/18
  6. Jan 19, 2026– Nov 2, 2026
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  7. Jan 28, 2026
    Route object
    IPXO
    RADB route object for AS174 Cogent Communications, LLC, maintainer MAINT-AS834
  8. Jan 28, 2026
    Route object
    IPXO
    ARIN route object for AS174 Cogent Communications, LLC, maintainer MNT-DCL-577
  9. Oct 29, 2026
    Route object
    IPXO
    RADB route object for AS39521 Tngnet B.V., maintainer MAINT-AS834
  10. Nov 3, 2026– today
    Announced
    AS39521 Tngnet B.V.
    Hosting
  11. today
    Leased from
    IPXO
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorLeased fromProxy exitsHolderRPKI
66.253.0.0/17
since Apr 2023
AS3257Internet provider5121.6%ISP proxyProxy providersoperated by Bunnysold by NovadaIP broker IPXO (part)315
28 always on
GTT Americas, LLC

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
66.253.0.0/1732,768MEGAPATH-BLK-56GTT Americas, LLC (GAL-104) · USDirect AllocationNov 21, 2005abuse@gtt.net
└ 66.253.64.0/1816,384IPXO-GTTIPXO LLC (IL-845) · USReallocatedJul 18, 2025abuse@ipxo.com
└ 66.253.64.0/1816,384NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedJul 22, 2025report@abuseradar.com

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
GTT Americas, LLC
Handle
GAL-104
Range
66.253.0.0/17
Registration type
Direct Allocation
Record created
Nov 21, 2005
Reallocated to
Internet Utilities NA LLC (DCL-577)
Reallocated range
66.253.64.0/18
Reallocated
Jul 22, 2025
Origin network

AS39521

NL
Name
Tngnet B.V.
Type
Hosting
Registered
Mar 9, 2015
Domain
tngnet.com
Website
www.tngnet.com
Spamhaus ASN-DROP
not listed