AS203943 ALEXANDER NICHOLSON 🇦🇺 AU
Announcing 5 prefixes, seen at the RIS collectors.
IPv4 prefixes
0
-
IPv6 prefixes
5
5 × /48
Upstreams
2
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
- AS203943
- Name
- ALEXANDER NICHOLSON
- Organisation
- ALEXANDER NICHOLSON
- Country
- 🇦🇺 AU
- RIR
- RIPENCC
- Allocated
- 2015-09-29
- Network type
- Content
- Traffic levels
- 0-20Mbps
- Scope
- Global
- Peering policy
- Open
- Website
- https://infra.ctrl.tokyo/
- PeeringDB
- net/18268
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 |
|---|---|---|---|---|
| 2a0e:b107:5a1::/48 v6 | RPKI valid | 37 | 2448221700203943 | 2026-09-18 |
| 2a0e:b107:5a2::/48 v6 | RPKI valid | 37 | 2448221700203943 | 2026-09-18 |
| 2a0e:b107:5a3::/48 v6 | RPKI valid | 37 | 2448221700203943 | 2026-09-18 |
| 2a0e:b107:5a5::/48 v6 | no ROA | 33 | 38001291420473203943 | 2026-09-18 |
| 2a0e:b107:5a7::/48 v6 | no ROA | 33 | 38001291420473203943 | 2026-09-18 |