AS9358 OPTAGE Inc.

Finder - OPTAGE Inc. · registered in Japan

IPv4 addresses8,1921 prefixes · <0.001% of announced IPv4

Rank in Japan#330largest network in JP by IPv4 space, of 724 · <0.01% of JP

Rank worldwide#10,521of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS9358 in ASN lookup Look up an IP in this network (210.141.128.1) All networks in Japan

IPv4 prefixes

All 1 prefix, in address order.

210.141.128.0/19

Other ASNs named OPTAGE Inc.

2 other networks use the same organisation name; together with AS9358 they announce 3,002,880 IPv4 addresses.

ASNNameIPv4 addresses

AS17511OPTAGE - OPTAGE Inc. JP2,994,432

AS151379NCJ - OPTAGE Inc. JP256

Similar-sized networks in Japan

ASNNameIPv4 addresses

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AS7686#329 ATNETHOME - JCOM Co., Ltd.8,192

AS17518#331 SHIOJIRI - Shiojiri City8,192

AS17694#332 JPN-DBJP - Deutsche Bank Group, Japan BGP connection8,192

AS23619#333 E-OSAKA - SMARTVALUE Co.,Ltd.8,192

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