AS55379 Hosei University 🇯🇵 JP
Announcing 4 prefixes, seen at the RIS collectors.
IPv4 prefixes
3
131,072 (512 × /24)
IPv6 prefixes
1
1 × /48
Upstreams
1
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
- AS55379
- Name
- Hosei University
- Organisation
- Hosei University
- Country
- 🇯🇵 JP
- RIR
- APNIC
- Allocated
- 2010-01-18
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
4 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 133.25.0.0/16 v4 | no ROA | 43 | 38001290755379 | 2026-09-18 |
| 133.25.0.0/17 v4 | no ROA | 43 | 38001290755379 | 2026-09-18 |
| 133.25.128.0/17 v4 | no ROA | 43 | 38001290755379 | 2026-09-18 |
| 2001:df3:6500::/48 v6 | no ROA | 32 | 38001290755379 | 2026-09-18 |