ASN Lookup Tool

Cyso Group B.V. cyso.net NL NL 28 Routes

AS Data

AS25151

AS25151Cyso Group B.V.

AS Number 25151
AS Name CYSO-AS
Organization Cyso Group B.V.(org-cmh1-ripe)
Country NL
Website cyso.net
Number of IPv4 Routes 25
Number of IPv6 Routes 3
ASN type HOSTING
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2002-09-16

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Use ASN data for AS25151 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
62.129.149.0/24 256
45.134.223.0/24 256
37.46.136.0/21 2048
109.235.72.0/21 2048
93.94.224.0/21 2048
81.24.0.0/22 1024
2a05:6cc0::/29 ~634×10²⁷
81.24.10.0/23 512
85.158.200.0/21 2048
81.24.6.0/23 512

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS24988 - AS25162'

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

% Information related to 'AS25151'

% Abuse contact for 'AS25151' is 'abuse@cyso.net'

aut-num:        AS25151
org:            ORG-CMH1-RIPE
as-name:        CYSO-AS
remarks:        AMS-ix route server
import:         from AS6777 accept ANY
export:         to AS6777 action community .= {6777:6777}; announce AS-CYSO
remarks:        NTT
import:         from AS2914 action pref=90; accept ANY
export:         to AS2914 announce AS-CYSO
remarks:        Telia
import:         from AS1299 action pref=90; accept ANY
export:         to AS1299 announce AS-CYSO
remarks:        Level3
import:         from AS3356 action pref=90; accept ANY
export:         to AS3356 announce AS-CYSO
remarks:        Nawas
import:         from AS200020 action pref=90; accept ANY
export:         to AS200020 announce AS-CYSO
remarks:        CYSO-FRA
import:         from AS210728 accept ANY
export:         to AS210728 announce ANY
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 peering@cyso.net
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:  2022-05-10T15:12:16Z
source:         RIPE

organisation:   ORG-CMH1-RIPE
org-name:       Cyso Group B.V.
country:        NL
org-type:       LIR
address:        Wognumsebuurt 3
address:        1817 BH
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:  2025-03-13T15:51:08Z
source:         RIPE # Filtered

role:           Cyso Hosting B.V. Technical Role Account
address:        Cyso Managed Hosting B.V.
address:        Wognumsebuurt 3
address:        1817 BH 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
abuse-mailbox:  abuse@cyso.net
remarks:        --
remarks:        Abuse issues : abuse@cyso.net
remarks:        Other technical issues : noc@cyso.net
remarks:        --
created:        2002-08-05T11:12:02Z
last-modified:  2019-11-04T12:45:28Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.121.2 (ABERDEEN)

Parsed Whois Response

Peers

AS Number Description Country
AS200020 Stichting NBIP NaWas NL
AS210728 Cyso Group B.V. NL
AS6777 Amsterdam Internet Exchange B.V. NL
AS200020 Stichting NBIP-NaWas NL
AS15535 Virtual Access Internet BV NL
AS1299 Arelion Sweden AB SE
AS2914 NTT America, Inc. US
AS3356 Level 3 Parent, LLC US
AS1267 WIND TRE S.P.A. IT

Upstreams

AS Number Description Country
AS1299 Arelion Sweden AB SE
AS2914 NTT America, Inc. US
AS3356 Level 3 Parent, LLC US
AS1267 WIND TRE S.P.A. IT

Downstreams

AS Number Description Country
AS210728 Cyso Group B.V. NL
AS15535 Virtual Access Internet BV NL

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Frequently Asked Questions

ASN AS25151 is an Autonomous System Number used to identify a network for BGP internet routing.
AS25151 is listed under Cyso Group B.V..
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.