AS4677 Marubeni OKI Network Solutions Inc.

PTOP - Marubeni OKI Network Solutions Inc. · registered in Japan

IPv4 addresses48,64014 prefixes · 0.002% of announced IPv4

Rank in Japan#177largest network in JP by IPv4 space, of 724 · 0.03% of JP

Rank worldwide#3,995of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryJapan745 ASNs registered there

Open AS4677 in ASN lookup Look up an IP in this network (133.149.0.1) All networks in Japan

IPv4 prefixes

All 14 prefixes, in address order.

133.149.0.0/19
133.149.128.0/19
133.149.160.0/20
133.149.176.0/21
133.149.184.0/22
133.149.188.0/23
133.149.190.0/24
133.149.191.0/24
202.226.64.0/19
202.226.96.0/21
202.226.106.0/23
202.226.108.0/22
202.226.112.0/20
210.142.192.0/19

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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