AS9604 FUJI SOFT INCORPORATED

FSI-AS - FUJI SOFT INCORPORATED · registered in Japan

IPv4 addresses14,3363 prefixes · <0.001% of announced IPv4

Rank in Japan#279largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#7,556of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS9604 in ASN lookup Look up an IP in this network (157.120.128.1) All networks in Japan

IPv4 prefixes

All 3 prefixes, in address order.

157.120.128.0/19
202.149.0.0/20
202.149.16.0/21

Similar-sized networks in Japan

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AS23635#276 CRCC - CRCCMedia Co.,ltd16,384

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AS23808#280 TOSHIMA-NET - TOSHIMA CABLE NETWORK CO.,LTD14,336

AS131931#281 ACTV-NET - Aomori Cable TV Co., Ltd.13,824

AS63997#282 TSUKAERUNET - Tsukaeru.net, Web Hosting Company, Japan13,568

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