AS55379

Name: AS55379 — Hosei University
Creator: ipdex

Hosei University Unknown registered in Japan

3IPv4 prefixes

3IPv6 prefixes

#38,931AS Rank

327/327RIS visibility

#360Rank in Japan

2010-01-18Allocated

Hosei University (AS55379) — Unknown, registered in Japan. announces 3 IPv4 prefixes + 3 IPv6 prefixes. Rank in Japan: #360. Allocated: 2010-01-18.

IPv4 3IPv6 3

Announced prefixes · 6

v4 133.25.0.0/16 unknown
v4 133.25.0.0/17 unknown
v4 133.25.128.0/17 unknown
v6 2001:df3:6500:8000::/49 unknown
v6 2001:df3:6500::/48 unknown
v6 2001:df3:6500::/49 unknown

Routing: 3 IPv4 · 1 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-19

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	6
2026-06-13	6

AS topology · Customer cone 1

Providers · 1

AS2907 Research Organization of Information and Systems, National Institute of Informatics

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