AS131912

Name: AS131912 — Cybozu,Inc.
Creator: ipdex

Cybozu,Inc. Content registered in Japan

2IPv4 prefixes

1IPv6 prefixes

67%RPKI-valid

#44,203AS Rank

#540Rank in Japan

2011-08-04Allocated

Cybozu,Inc. (AS131912) — Content, registered in Japan. announces 2 IPv4 prefixes + 1 IPv6 prefixes. Rank in Japan: #540. Allocated: 2011-08-04.

IPv4 2IPv6 1

Announced prefixes · 3

v4 103.79.12.0/22 valid
v4 202.253.115.0/24 unknown
v6 2407:d440::/32 valid

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

— Routing status unavailable

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 · 6

BBIX Osaka Osaka 10 Gbps
BBIX Tokyo Tokyo 10 Gbps
Equinix Osaka Osaka 10 Gbps
Equinix Tokyo Tokyo 10 Gbps
JPNAP Osaka Osaka 10 Gbps
JPNAP Tokyo Tokyo 10 Gbps

AS topology · Customer cone 1

Providers · 3

AS2497 Internet Initiative Japan Inc.
AS17676 SoftBank Corp.
AS2518 BIGLOBE Inc.

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