Country
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ASN LANDING PAGE
AS25151
CYSO-AS Cyso Group B.V.
Last updated · Jul 20, 2026
Total prefixes
21
IPv4 prefixes
18
IPv6 prefixes
3
ASN summary
How to read the scale of AS25151
CYSO-AS Cyso Group B.V. currently reports 21 prefixes and 42 upstream, downstream, or peer relationships. These counts describe the current dataset; they do not by themselves prove network quality, reach, or service use.
What can an ASN page answer?
An ASN page shows the public organization label, country or region, BGP prefixes, and available peer and upstream relationships. It adds network context but cannot confirm a website host, physical facility, security status, or service quality.
How should you read the organization and region fields?
CYSO-AS Cyso Group B.V. is currently associated with an unknown region. These values come from public network sources and are useful lookup clues; an organization label, registration region, and actual service location may differ.
How should you verify the AS25151 result?
The page shows ASN data returned by the current upstream query; interpret it with the update time. Open representative IP pages from the same network and compare prefixes, source labels, and query times. Verify operator or service claims with the relevant registry or network operator.
How to verify this ASN result
AS25151 ASN lookupAS25151 BGPAS25151 peersAS25151 prefixesAS25151 upstreamsCYSO-AS Cyso Group B.V. ASN
Upstreams
Detailed data for this ASN is not available right now.
Downstreams
Peers
AS3356
AS3356
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AS1299
AS1299
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AS200020
AS200020
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AS6939
AS6939
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AS2914
AS2914
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AS13030
AS13030
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AS6777
AS6777
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AS9002
AS9002
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AS50673
AS50673
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AS34019
AS34019
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AS5405
AS5405
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AS33891
AS33891
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AS8298
AS8298
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AS37497
AS37497
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AS35280
AS35280
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AS61049
AS61049
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AS6057
AS6057
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AS14840
AS14840
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AS20764
AS20764
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AS24961
AS24961
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AS29632
AS29632
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AS34177
AS34177
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AS39351
AS39351
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AS41327
AS41327
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AS48362
AS48362
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AS12779
AS12779
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AS25091
AS25091
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AS47147
AS47147
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AS1103
AS1103
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AS1140
AS1140
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AS1267
AS1267
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AS1828
AS1828
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AS3214
AS3214
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AS3216
AS3216
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AS12637
AS12637
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AS12859
AS12859
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AS12969
AS12969
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AS14907
AS14907
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AS15576
AS15576
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AS15605
AS15605
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Prefix inventory
| Prefix | Name | Country |
|---|---|---|
| 109.235.72.0/21 | AS25151 | — |
| 130.193.5.0/24 | AS25151 | — |
| 185.123.55.0/24 | AS25151 | — |
| 185.54.112.0/22 | AS25151 | — |
| 185.78.196.0/22 | AS25151 | — |
| 193.33.220.0/24 | AS25151 | — |
| 2.57.56.0/24 | AS25151 | — |
| 2001:678:c50::/48 | AS25151 | — |
| 2a01:518::/32 | AS25151 | — |
| 2a05:6cc0::/29 | AS25151 | — |
| 37.46.136.0/21 | AS25151 | — |
| 37.46.140.0/24 | AS25151 | — |
| 37.72.138.0/24 | AS25151 | — |
| 45.134.223.0/24 | AS25151 | — |
| 62.129.139.0/24 | AS25151 | — |
| 62.129.149.0/24 | AS25151 | — |
| 80.85.160.0/23 | AS25151 | — |
| 80.85.160.0/24 | AS25151 | — |
| 81.24.0.0/20 | AS25151 | — |
| 85.158.200.0/21 | AS25151 | — |
| 93.94.224.0/21 | AS25151 | — |
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Related lookups and next steps
Frequently asked questions about this ASN page
What does AS25151 represent?
AS25151 is an autonomous system number. The current source associates it with CYSO-AS Cyso Group B.V. and the region field an unknown region; those values add network context but do not prove a specific service, physical location, or quality level.
What are peers, upstreams, and prefixes useful for on the AS25151 page?
They help explain the scale, interconnection depth, and route structure of AS25151. Richer peering and upstream data often indicate broader network reach, but they should still be interpreted together with prefixes and related IP landing pages.
What should you do after reviewing AS25151?
Open a concrete IP page to check how the address maps into AS25151, then compare the prefix, source labels, and query time. Verify operator or service claims with the relevant registry or network operator.
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