AS209771 SYSN LTD 🇬🇧 GB
Announcing 5 prefixes, seen at the RIS collectors.
IPv4 prefixes
0
-
IPv6 prefixes
5
5 × /48
Upstreams
9
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS209771
- Name
- SYSN LTD
- Organisation
- SYSN
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2018-12-05
- Scope
- Europe
- Peering policy
- Open
- IRR as-set
- RIPE::AS-SYSN
- Website
- https://sysn.co.uk
- PeeringDB
- net/22177
- Exchanges
- 3
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
5 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 2a0c:6500:23e::/48 v6 | RPKI valid | 37 | 5805711967209771 | 2026-09-18 |
| 2a0c:6500:23f::/48 v6 | RPKI valid | 38 | 34549209771 | 2026-09-18 |
| 2a0e:46c6:4fe::/48 v6 | no ROA | 39 | 24482209771 | 2026-09-18 |
| 2a0e:46c6:4ff::/48 v6 | no ROA | 38 | 34549209771 | 2026-09-18 |
| 2a13:9500:44::/48 v6 | RPKI valid | 38 | 24482209771 | 2026-09-18 |