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Data as of Nov 6, 2026

81.24.4.0/22

No anonymizer space · no proxy exits in 30 days

Cyso Group B.V.

Announcement
81.24.0.0/20
RPKI valid
Announced by
AS25151
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin Jul 2026
from AS25151 Cyso Group B.V., after 3.2 years unannounced

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
81.24.0.0/204,096NL-CYSO-20080222Cyso Group B.V. (ORG-CMH1-RIPE) · NLALLOCATED PADec 24, 2024abuse@cyso.net
└ 81.24.4.0/221,024FUGA_AMSunknownASSIGNED PAJun 29, 2021abuse@cyso.net
via NL-CYSO-20080222

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
Announced by

Covering announcement 81.24.0.0/20

Prefix
81.24.0.0/20
Announced by
AS25151 Cyso Group B.V.
Type
Hosting
Proxy exits
1
Always-on exits
1
RPKI
RPKI valid
Netname
NL-CYSO-20080222
Registrant
Cyso Group B.V.
RIR
RIPE NCC
Origin network

AS25151

NL
Name
Cyso Group B.V.
Type
Hosting
Registered
Aug 9, 2002
Domain
cyso.com
Website
www.cyso.com
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed