AS17530 Nihon Network Service Co, .Ltd.

NNS - Nihon Network Service Co, .Ltd. · registered in Japan

IPv4 addresses38,9124 prefixes · 0.001% of announced IPv4

Rank in Japan#193largest network in JP by IPv4 space, of 724 · 0.02% of JP

Rank worldwide#4,371of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryJapan745 ASNs registered there

Open AS17530 in ASN lookup Look up an IP in this network (59.191.128.1) All networks in Japan

IPv4 prefixes

All 4 prefixes, in address order.

59.191.128.0/18
61.193.128.0/20
64.63.64.0/18
122.201.0.0/21

IPv6 prefixes

All 1 prefix.

2401:bf00::/32

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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