AS23641

Name: AS23641 — NS Computer Service Corporation
Creator: ipdex

NS Computer Service Corporation ISP registered in Japan

2IPv4 prefixes

1IPv6 prefixes

#22,165AS Rank

327/327RIS visibility

#540Rank in Japan

2003-01-31Allocated

NS Computer Service Corporation (AS23641) — ISP, registered in Japan. announces 2 IPv4 prefixes + 1 IPv6 prefixes. Rank in Japan: #540. Allocated: 2003-01-31.

IPv4 2IPv6 1

Announced prefixes · 3

v4 203.86.224.0/21 unknown
v4 211.19.16.0/20 unknown
v6 2403:9200::/32 unknown

Routing: 2 IPv4 · 1 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	3
2026-06-13	3

Internet Exchanges · 2

BBIX Tokyo Tokyo 1 Gbps
Echigo-IX Niigata 1 Gbps

AS topology · Customer cone 1

Providers · 1

AS2914 NTT America, Inc.

Peers · 12

AS9002 RETN Limited
AS3216 PJSC Vimpelcom
AS137409 GSL Networks Pty LTD
AS9304 HGC Global Communications Limited
AS1828 Unitas Global
AS24482 SG.GS

Embed this on your site

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

Badge

Markdown

[![AS23641 on ipdex](https://ipdex.io/badge/asn/23641.svg)](https://ipdex.io/asn/AS23641/)

HTML

<a href="https://ipdex.io/asn/AS23641/"><img src="https://ipdex.io/badge/asn/23641.svg" alt="AS23641 on ipdex"></a>

Live chart (iframe)

<iframe src="https://ipdex.io/embed/asn/23641" 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.