AS39563 CTA Systems B.V. 🇳🇱 NL
Announcing 10 prefixes, seen at the RIS collectors.
IPv4 prefixes
9
2,304 (9 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
8
transit providers observed
Peers
12
settlement-free adjacencies
Downstreams
1
transit customers observed
Customer cone
2
ASes reachable through it
Registry and operator data
- AS number
- AS39563
- Name
- CTA Systems B.V.
- Organisation
- UC Systems
- Country
- 🇳🇱 NL
- RIR
- RIPENCC
- Allocated
- 2017-11-10
- Network type
- NSP
- Traffic levels
- 1-5Gbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- AS-UCSYSTEMS
- Website
- https://ucsystems.nl
- PeeringDB
- net/24232
- Exchanges
- 13
- Facilities
- 7
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
10 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 85.8.131.0/24 v4 | RPKI valid | 41 | 3772139563 | 2026-09-18 |
| 185.80.8.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 185.80.9.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 185.80.10.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 185.80.11.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 185.231.16.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 185.231.17.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 185.231.18.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 185.231.19.0/24 v4 | RPKI valid | 43 | 3772139563 | 2026-09-18 |
| 2a0c:3900::/32 v6 | RPKI valid | 38 | 20409239563 | 2026-09-18 |