AS131158

Name: AS131158 — Nara Institute of Science and Technology, National University Corporation
Creator: ipdex

Nara Institute of Science and Technology, National University Corporation Unknown registered in Japan

2IPv4 prefixes

1IPv6 prefixes

#43,800AS Rank

325/325RIS visibility

#540Rank in Japan

2008-10-03Allocated

Nara Institute of Science and Technology, National University Corporation (AS131158) — Unknown, registered in Japan. announces 2 IPv4 prefixes + 1 IPv6 prefixes. Rank in Japan: #540. Allocated: 2008-10-03.

IPv4 2IPv6 1

Announced prefixes · 3

v4 163.221.0.0/16 unknown
v4 192.218.128.0/23 unknown
v6 2001:df3:540::/48 unknown

Routing: 2 IPv4 · 1 IPv6 announced · RIS visibility 325/325 RIS peers · RIPEstat · 2026-06-18

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	3
2026-06-13	3

AS topology · Customer cone 1

Providers · 2

AS2500 WIDE Project
AS2907 Research Organization of Information and Systems, National Institute of Informatics

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