Japan

AS213471

YAMAMOTO Hiroshi Education registered in Japan

0IPv4 prefixes
8IPv6 prefixes
75%RPKI-valid
0/327RIS visibility
#295Rank in Japan
2025-02-04Allocated

YAMAMOTO Hiroshi (AS213471) — Education, registered in Japan. announces 0 IPv4 prefixes + 8 IPv6 prefixes. Rank in Japan: #295. Allocated: 2025-02-04.

Announced prefixes · 8

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

Routing: 0 IPv4 · 9 IPv6 announced · RIS visibility 0/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

0 5 10 2026-06-12 2026-06-14
Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)
Data table
DayAnnounced prefixes
2026-06-1211
2026-06-1311
2026-06-148

Internet Exchanges · 2

Adjacent ASNs

Embed this on your site

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

Badge AS213471 on ipdex

Markdown

[![AS213471 on ipdex](https://ipdex.io/badge/asn/213471.svg)](https://ipdex.io/asn/AS213471/)

HTML

<a href="https://ipdex.io/asn/AS213471/"><img src="https://ipdex.io/badge/asn/213471.svg" alt="AS213471 on ipdex"></a>

Live chart (iframe)

<iframe src="https://ipdex.io/embed/asn/213471" 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.