AS131971

Name: AS131971 — Japan Network Information Center
Creator: ipdex

Japan Network Information Center Education registered in Japan

5IPv4 prefixes

7IPv6 prefixes

67%RPKI-valid

#44,249AS Rank

326/327RIS visibility

#214Rank in Japan

2011-08-04Allocated

Japan Network Information Center (AS131971) — Education, registered in Japan. announces 5 IPv4 prefixes + 7 IPv6 prefixes. Rank in Japan: #214. Allocated: 2011-08-04.

IPv4 5IPv6 7

Announced prefixes · 12

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 5 IPv4 · 7 IPv6 announced · RIS visibility 326/327 RIS peers · RIPEstat · 2026-06-17

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	12
2026-06-13	12

Internet Exchanges · 1

ENTERNET IX Tokyo 1 Gbps

Facilities · 1

1 Facilities · 1 Countries

Telehouse – TOKYO Otemachi (KDDI Otemachi) Tokyo

AS topology · Customer cone 1

Providers · 1

AS2515 Japan Network Information Center

Embed this on your site

Free badges and live charts — they update as the index does. No key, link back to ipdex.

Badge

Markdown

[![AS131971 on ipdex](https://ipdex.io/badge/asn/131971.svg)](https://ipdex.io/asn/AS131971/)

HTML

<a href="https://ipdex.io/asn/AS131971/"><img src="https://ipdex.io/badge/asn/131971.svg" alt="AS131971 on ipdex"></a>

Live chart (iframe)

<iframe src="https://ipdex.io/embed/asn/131971" width="680" height="260" frameborder="0" scrolling="no" title="ipdex chart" style="border:0;max-width:100%"></iframe>

oEmbed-enabled: paste the page URL into platforms that support oEmbed and the chart embeds automatically.