ıpdex
Japan

AS63781

Kobayashi Family Net LLP Education registered in Japan

2IPv4 prefixes
1IPv6 prefixes
100%RPKI-valid
#43,492AS Rank
327/327RIS visibility
#540Rank in Japan
2014-08-25Allocated

Kobayashi Family Net LLP (AS63781) — Education, registered in Japan. announces 2 IPv4 prefixes + 1 IPv6 prefixes. Rank in Japan: #540. Allocated: 2014-08-25.

Announced prefixes · 3

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

Routing: 2 IPv4 · 1 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

0 1 2 3 2026-06-12 2026-06-13
Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)
Data table
DayAnnounced prefixes
2026-06-123
2026-06-133

Internet Exchanges · 1

AS topology · Customer cone 1

Providers · 4

  • AS59105 Home NOC Operators Group
  • AS59103 SoftEther Corporation
  • AS38074 SDCC Japan-West Area
  • AS63798 Industrial Cyber Security Center of Excellence
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