AS17947 SAKURA KCS Corporation.

S-UTOPIA - SAKURA KCS Corporation. · registered in Japan

IPv4 addresses69,6322 prefixes · 0.002% of announced IPv4

Rank in Japan#96largest network in JP by IPv4 space, of 724 · 0.04% of JP

Rank worldwide#2,459of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS17947 in ASN lookup Look up an IP in this network (133.249.0.1) All networks in Japan

IPv4 prefixes

All 2 prefixes, in address order.

133.249.0.0/16
203.179.224.0/20

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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