133.87.0.0/16
IPv4 prefix announced by AS7509 Hokkaido University
unknown RPKI
VALID announced
1 Recorded origin
Routing
- Recorded origin
- AS7509 Hokkaido University unknown
- Observed origin (RIS)
- AS7509 HINES - Hokkaido University
- Country
- Japan
RPKI: rpki.cloudflare.com · 2026-06-19 · Routing: RIPEstat · 2026-06-19