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Data as of Nov 8, 2026

204.52.104.0/24

Anonymizer · Datacenter proxy

Tngnet B.V. · space held by Fastplanet Ltd

Announcement
this exact prefix
RPKI valid
Announced by
AS39521
Type
Datacenter proxy
Risk
85 / 100 · Critical
Recent change
New origin Nov 4, 2026
from AS174 Cogent Communications, LLC
IPv4 market

Path

Announced by AS39521 since Nov 4, 2026 · 4 days ago
1 · Holder
Fastplanet Ltd
record created Apr 4, 2024
2 · Leased from
Fastplanet Ltd
its owner, directly
3 · Announced by
AS39521 Tngnet B.V.
since Nov 4, 2026 · 4 days ago
4 · Use
Datacenter proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 204.52.104.0/24/24s
Fastplanet Ltd
256100%
1

Lineage

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

204.52.104.0/24

From the registry to its use

  1. Apr 4, 2024
    Registry record
    Fastplanet Ltd
    ALLOCATED PA
    204.52.96.0/19
  2. Aug 16, 2025– Dec 1, 2025
    Announced
    AS205936 Could IT Hosting Limited
    Hosting
  3. Dec 1, 2025
    Route object
    AS174 Cogent Communications, LLC
    RIPE route object for AS174 Cogent Communications, LLC, maintainer LIR-UK-FASTPLANET-1-MNT
  4. Dec 2, 2025– Nov 3, 2026
    Announced
    AS174 Cogent Communications, LLC
    Internet provider
  5. Nov 2, 2026
    Route object
    AS39521 Tngnet B.V.
    RIPE route object for AS39521 Tngnet B.V., maintainer LIR-UK-FASTPLANET-1-MNT
  6. Nov 4, 2026– today
    Announced
    AS39521 Tngnet B.V.
    Hosting

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
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