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ASN Lookup Tool
AS25151 CYSO-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS25151
Organisation
Cyso Group B.V.
Name
CYSO-AS
Total IPv4 Addresses
15,872
Total IPv4 Prefixes
22
Total IPv6 Prefixes
4
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#7,475 out of 79,208
Registry
Ripe
Registered Country
NL flagNL
Registered Country Name
Netherlands (Kingdom of the)
Registered Date
2002-09-16
Registration Last Change
2022-05-10
Receiving From
ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS56662
PL flagMarcin Gondek
AS3356
US flagLevel 3 Parent, LLC
AS2914
US flagNTT America, Inc.
AS4230
BR flagCLARO S.A.
Showing 5 of 59
Transit To
ASN
Organisation
AS15535
NL flagVirtual Access Internet BV
AS210728
NL flagCyso Group B.V.
IPv4 Active Prefixes
PrefixRange FromRange To
2.57.56.0/242.57.56.02.57.56.255
37.46.136.0/2137.46.136.037.46.143.255
37.72.138.0/2437.72.138.037.72.138.255
45.134.223.0/2445.134.223.045.134.223.255
62.129.139.0/2462.129.139.062.129.139.255
Showing 5 of 22
IPv6 Active Prefixes
PrefixRange FromRange To
2001:678:c50::/482001:678:c50::2001:678:c50:ffff:ffff:ffff:ffff:ffff
2001:67c:1724::/482001:67c:1724::2001:67c:1724:ffff:ffff:ffff:ffff:ffff
2a01:518::/322a01:518::2a01:518:ffff:ffff:ffff:ffff:ffff:ffff
2a05:6cc0::/292a05:6cc0::2a05:6cc7:ffff:ffff:ffff:ffff:ffff:ffff