CYSO B.V.

Cyso Group B.V.
Data as of 2026-07-26
GLEIF verified
LEI
724500TUH2GUUXZ23U78
Registered name
CYSO B.V.
Jurisdiction
NL
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks48 · 18,177 IPv4 addresses
IPv6 11 prefixes (largest 2a05:6cc0::/29)
Cluster ID213266960
RegistryBGP
Owner jurisdictionNL
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 724500TUH2GUUXZ23U78
Shared handles clustered on 24 shared RIR contact/maintainer handles
Registry names 10 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

6 weekly snapshots · JSON
64 +1 netblocks since 2026-07-05
2026-07-05 peak 64 2026-07-26

IP Ranges (48)

⬇ export CSV
CIDR Org name Registry Status Confidence
2.57.56.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
37.46.136.0/21 Cyso Group B.V. BGP ANNOUNCED ● high
37.72.138.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
45.134.223.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
46.16.38.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
46.253.137.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
62.129.139.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
62.129.149.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
77.246.243.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
80.85.160.0/23 Cyso Group B.V. BGP ANNOUNCED ● high
80.85.161.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
80.249.209.155/32 CYSO PEERINGDB ASSIGNED ● high
81.24.0.0/22 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.0.0/20 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.4.0/22 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.4.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.6.0/23 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.8.0/22 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.9.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.10.0/23 Cyso Group B.V. BGP ANNOUNCED ● high
81.24.12.0/22 Cyso Group B.V. BGP ANNOUNCED ● high
85.158.200.0/21 Cyso Group B.V. BGP ANNOUNCED ● high
93.94.224.0/21 Cyso Group B.V. BGP ANNOUNCED ● high
109.235.72.0/21 Cyso Group B.V. BGP ANNOUNCED ● high
130.193.5.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
185.54.112.0/22 Cyso Group B.V. BGP ANNOUNCED ● high
185.78.196.0/22 Cyso Group B.V. BGP ANNOUNCED ● high
185.123.55.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
193.33.220.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
194.26.103.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
213.173.39.0/24 Cyso Group B.V. BGP ANNOUNCED ● high
2001:678:c50::/48 Cyso Group B.V. BGP ANNOUNCED ● high
2001:7f8:1::a502:5151:1/128 CYSO PEERINGDB ASSIGNED ● high
2a01:518::/32 Cyso Group B.V. BGP ANNOUNCED ● high
2a05:6cc0::/29 Cyso Group B.V. BGP ANNOUNCED ● high
2a11:2440::/32 Cyso Group B.V. BGP ANNOUNCED ● high
2a14:6480::/33 Cyso Group B.V. BGP ANNOUNCED ● high
37.46.139.104/29 CYSO-NEN RIPE ASSIGNED PA ● low
109.235.79.32/28 CYSO-TAF RIPE ASSIGNED PA ● low
109.235.79.48/30 CYSO-WOG3 RIPE ASSIGNED PA ● low
194.26.103.0/25 CYSO-FRA-INFRA1 RIPE ASSIGNED PA ● low
194.26.103.128/25 CYSO-FRA-INFRA2 RIPE ASSIGNED PA ● low
213.173.39.0/25 CYSO-FRA-CUST1 RIPE ASSIGNED PA ● low
2a11:2440:1000::/48 CYSO-FRA-CUST1 RIPE ASSIGNED ● low
2a11:2440:2000::/48 CYSO-FRA-CUST2 RIPE ASSIGNED ● low
2a11:2440:4000::/48 CYSO-FRA-INFRA1 RIPE ASSIGNED ● low
2a11:2440:ffff::/48 CYSO-FRA-INFRA2 RIPE ASSIGNED ● low
2a14:6480::/29 Cyso Group B.V. RIPE ALLOCATED-BY-RIR ● low

IPv6 ranges (11)

CIDR
2a05:6cc0::/29
2a14:6480::/29
2a01:518::/32
2a11:2440::/32
2a14:6480::/33
2001:678:c50::/48
2a11:2440:1000::/48
2a11:2440:2000::/48
2a11:2440:4000::/48
2a11:2440:ffff::/48
2001:7f8:1::a502:5151:1/128

Network trust

what's this?
RPKI hygiene: B how networks compare →
92.2% of checked blocks have valid RPKI ROA coverage (59 of 64)
No discrepancies found among checked blocks.

NIC Handles

AS210728 AS25151 AS25151 AS44694 ArnoudDeJonge-mnt CLDIN-MNT CYSO-MNT CYSO-MNT DLW-MNT DUMY-RIPE DUMY-RIPE FUGA-MNT +12 more