AS9591 National Institute for Fusion Science 🇯🇵 JP
Announcing 2 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
65,792 (257 × /24)
IPv6 prefixes
0
-
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
- AS9591
- Name
- National Institute for Fusion Science
- Organisation
- National Institute for Fusion Science
- Country
- 🇯🇵 JP
- RIR
- APNIC
- Allocated
- 1999-08-05
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
2 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 133.75.0.0/16 v4 | RPKI valid | 43 | 1763929079591 | 2026-09-18 |
| 133.75.232.0/24 v4 | RPKI valid | 42 | 3800129079591 | 2026-09-18 |