AS50522 Sewan Nederland B.V. 🇳🇱 NL
Announcing 12 prefixes, seen at the RIS collectors.
IPv4 prefixes
11
16,384 (64 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
9
transit providers observed
Peers
14
settlement-free adjacencies
Downstreams
2
transit customers observed
Customer cone
3
ASes reachable through it
Registry and operator data
- AS number
- AS50522
- Name
- Sewan Nederland B.V.
- Organisation
- Sewan Nederland BV
- Country
- 🇳🇱 NL
- RIR
- RIPENCC
- Allocated
- 2010-02-02
- Network type
- Cable/DSL/ISP
- Traffic levels
- 20-50Gbps
- Scope
- Europe
- Peering policy
- Selective
- IRR as-set
- AS-POCOS
- Website
- https://www.sewan.nl/
- PeeringDB
- net/6138
- Exchanges
- 5
- Facilities
- 9
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
12 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 81.23.244.0/22 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.0.0/22 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.7.0/24 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.32.0/22 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.48.0/20 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.64.0/20 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.96.0/22 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.125.0/24 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 81.173.126.0/23 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 109.235.32.0/21 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 185.61.68.0/22 v4 | RPKI valid | 43 | 3772150522 | 2026-09-18 |
| 2a03:be00::/32 v6 | RPKI valid | 35 | 3772150522 | 2026-09-18 |