AS63805 Ryobi Systems Co., Ltd.

RIDC-NET - Ryobi Systems Co., Ltd. · registered in Japan

IPv4 addresses1,5362 prefixes · <0.001% of announced IPv4

Rank in Japan#496largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#26,205of 79,396 networks with IPv4

IPv63 x /483 prefixes

CountryJapan745 ASNs registered there

Open AS63805 in ASN lookup Look up an IP in this network (103.239.90.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

103.239.90.0/23
126.52.24.0/22

IPv6 prefixes

All 3 prefixes.

2401:1b20::/48
2401:1b20:dc1::/48
2401:1b20:dc2::/48

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources