AS25151 -

Cyso Management B.V.

AS25151 Cyso Management B.V.








IP Addresses




Network Speed

We don't currently have any network speed data for this network.

Hosted Domains

There are 8,551 domain names hosted across 564 IP addresses on this ASN.

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Whois Details

as-block:       AS24988 - AS25162
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:30Z
last-modified:  2018-11-22T15:27:30Z
source:         RIPE

aut-num:        AS25151
org:            ORG-CMH1-RIPE
as-name:        CYSO-AS
remarks:        - Peering Sessions
remarks:        AMS-IX
import:         from AS25151:AS-AMS-IX-PEERS action pref=110; accept ANY AND NOT {}
export:         to AS25151:AS-AMS-IX-PEERS announce AS-CYSO
remarks:        AMS-ix route server
import:         from AS6777 accept ANY
export:         to AS6777 action community .= {6777:6777}; announce AS-CYSO
remarks:        NL-IX
import:         from AS25151:AS-NL-IX-PEERS action pref=110; accept ANY AND NOT {}
export:         to AS25151:AS-NL-IX-PEERS announce AS-CYSO
remarks:        Open Peering
import:         from AS20562 action pref=90; accept ANY
export:         to AS20562 announce AS-CYSO
remarks:        nLayer
import:         from AS4436 action pref=90; accept ANY
export:         to AS4436 announce AS-CYSO
remarks:        Level3
import:         from AS3356 action pref=90; accept ANY
export:         to AS3356 announce AS-CYSO
remarks:        Cogent
import:         from AS174 action pref=90; accept ANY
export:         to AS174 announce AS-CYSO
admin-c:        CYSO-RIPE
tech-c:         CYSO-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
remarks:        --
remarks:        If you want to peer with us, mail
remarks:        We do not filter our peers unless they screw up.
remarks:        We use maximum-prefix filters on all peers.
remarks:        --
mnt-by:         CYSO-MNT
created:        2002-09-16T13:40:41Z
last-modified:  2017-11-15T09:19:44Z
source:         RIPE

organisation:   ORG-CMH1-RIPE
org-name:       Cyso Management B.V.
org-type:       LIR
address:        Luttik Oudorp 11
address:        1811 MT
address:        Alkmaar
address:        NETHERLANDS
phone:          +31 72 751 3400
fax-no:         +31 72 751 3401
admin-c:        CYSO-RIPE
admin-c:        SCAW666-RIPE
admin-c:        TSW-RIPE
abuse-c:        CYSO-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CYSO-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CYSO-MNT
created:        2005-01-13T06:11:10Z
last-modified:  2016-09-09T11:59:13Z
source:         RIPE

role:           Cyso Hosting B.V. Technical Role Account
address:        Cyso Managed Hosting B.V.
address:        Luttik Oudorp 11-13
address:        1811 MT Alkmaar
address:        The Netherlands
phone:          +31 72 7513400
fax-no:         +31 72 7513401
admin-c:        TSW-RIPE
admin-c:        SCAW666-RIPE
admin-c:        PIJN1-RIPE
tech-c:         TSW-RIPE
tech-c:         PIJN1-RIPE
tech-c:         SCAW666-RIPE
nic-hdl:        CYSO-RIPE
mnt-by:         CYSO-MNT
remarks:        --
remarks:        Abuse issues :
remarks:        Other technical issues :
remarks:        --
created:        2002-08-05T11:12:02Z
last-modified:  2018-05-02T09:41:38Z
source:         RIPE

IP Address Ranges

Netblock Description Num IPs Cyso Management B.V. 2,048 Cyso Management B.V. 1,024 Fuga b.v. 1,024 Ronald Pool is trading as Video en Media 512 HCB Media BV 256 Cyso Hosting B.V. 512 Cyso Management B.V. 2,048 Fuga b.v. 4,096 Cyso Management B.V. 2,048 YourHosting B.V. 256
Netblock Description
2001:67c:1724::/48 HCB Media BV.
2a01:518::/32 Cyso Management B.V.
2a01:b940::/32 Your Holding B.V.
2a04:6bc0::/29 Your Holding B.V.
2a04:8b80::/29 Resello B.V.
2a05:6cc0::/29 Fuga b.v.

Network Speed

We don't currently have any network speed data for this network.

Hosted Domains

There are 8,551 domain names hosted across 564 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP 2,187 1,277 454 403 235 204 175 154 144 133


There are 91 peers for this ASN.

SURFnet bv AS1103
VTX Services SA AS12350
SEEWEB s.r.l. AS12637
IT.Gate S.p.A. AS12779
BIT BV AS12859
Fastweb SpA AS12874
Init7 (Switzerland) Ltd. AS13030
euNetworks GmbH AS13237
Wikimedia Foundation Inc. AS14907


There are 4 upstreams for this ASN.

Stichting NBIP-NaWas AS200020
NTT America, Inc. AS2914
Level 3 Parent, LLC AS3356
Hurricane Electric LLC AS6939


There are no downstreams for this ASN.

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Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

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Find out more about AS25151 at robtex.

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