AS37891

Name: AS37891 — JR TOKAI Information Systems Company
Creator: ipdex

JR TOKAI Information Systems Company Unknown registered in Japan

8IPv4 prefixes

0IPv6 prefixes

#29,068AS Rank

327/327RIS visibility

#295Rank in Japan

2006-01-30Allocated

JR TOKAI Information Systems Company (AS37891) — Unknown, registered in Japan. announces 8 IPv4 prefixes + 0 IPv6 prefixes. Rank in Japan: #295. Allocated: 2006-01-30.

IPv4 8IPv6 0

Announced prefixes · 8

v4 192.218.65.0/24 unknown
v4 192.218.66.0/24 unknown
v4 58.147.160.0/21 unknown
v4 58.147.162.0/24 unknown
v4 58.147.163.0/24 unknown
v4 58.147.165.0/24 unknown
v4 58.147.166.0/24 unknown
v4 58.147.167.0/24 unknown

Routing: 8 IPv4 · 0 IPv6 announced · RIS visibility 327/327 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	8
2026-06-13	8

AS topology · Customer cone 1

Providers · 3

AS2497 Internet Initiative Japan Inc.
AS2516 KDDI CORPORATION
AS4713 NTT DOCOMO BUSINESS,Inc.

Embed this on your site

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

Badge

Markdown

[![AS37891 on ipdex](https://ipdex.io/badge/asn/37891.svg)](https://ipdex.io/asn/AS37891/)

HTML

<a href="https://ipdex.io/asn/AS37891/"><img src="https://ipdex.io/badge/asn/37891.svg" alt="AS37891 on ipdex"></a>

Live chart (iframe)

<iframe src="https://ipdex.io/embed/asn/37891" 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.