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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
15295
Total IPv4 Prefixes
21
Total IPv6 Prefixes
4
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#7,654 out of 77,224
Registry
Ripe
Registered Country
NL flag NL
Registered Country Name
Netherlands (Kingdom of the)
Registered Date
2002-09-16
Registration Last Change
2022-05-10
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS41805
IQ flagSAWAD LAND for Information Technology Ltd
AS328832
ZA flagNetwork Platforms (PTY) LTD
AS56662
PL flagMarcin Gondek
AS3356
US flagLevel 3 Parent, LLC
AS1239
US flagSprint
Showing 5 of 70
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS15535
NL flagVirtual Access Internet BV
AS210728
NL flagCyso Group B.V.
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix2.57.56.0/24
Range From2.57.56.0
Range To2.57.56.255
Prefix37.46.136.0/21
Range From37.46.136.0
Range To37.46.143.255
Prefix37.72.138.0/24
Range From37.72.138.0
Range To37.72.138.255
Prefix45.134.223.0/24
Range From45.134.223.0
Range To45.134.223.255
Prefix62.129.139.0/24
Range From62.129.139.0
Range To62.129.139.255
Showing 5 of 21
IPv6 Active Prefixes
Prefix2001:678:c50::/48
Range From2001:678:c50::
Range To2001:678:c50:ffff:ffff:ffff:ffff:ffff
Prefix2001:67c:1724::/48
Range From2001:67c:1724::
Range To2001:67c:1724:ffff:ffff:ffff:ffff:ffff
Prefix2a01:518::/32
Range From2a01:518::
Range To2a01:518:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2a05:6cc0::/29
Range From2a05:6cc0::
Range To2a05:6cc7:ffff:ffff:ffff:ffff:ffff:ffff
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.