Cyso Group B.V.
AS210728 is Cyso Group B.V. (cyso.net). It announces 768 IPv4 addresses in 3 prefixes, and 1 IPv6 prefixes.
The Netherlands· RIPE· allocated 2021-09-22· business
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Germany768 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- CYSO-AS-DE
- name
- Cyso Group B.V.
- org
- ORG-CGB5-RIPE
- org name
- Cyso Group B.V.
- org address
- Wognumsebuurt 3, 1817 BH, Alkmaar, NETHERLANDS
- org country
- NL
- country
- NL
- source
- ripe
- status
- ASSIGNED
- created
- 2021-09-22
- updated
- 2023-04-19
- descr
- CYSO-AMS / LEVEL3 / DE-CIX / FUGA
- maintainer
- RIPE-NCC-END-MNT|CYSO-MNT
- abuse name
- Abuse-C Role
- abuse email
- abuse@cyso.net
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 0.13%
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 77.246.243.0/24 | Germany | valid | 17 | 2026-10-02 |
| 194.26.103.0/24 | Germany | valid | 17 | 2026-10-02 |
| 213.173.39.0/24 | Germany | valid | 17 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2a11:2440::/32 | Germany | valid | 20 | 2026-10-02 |
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