AS131937 Joetsu Cable Vision

JCV - Joetsu Cable Vision · registered in Japan

IPv4 addresses33,2809 prefixes · 0.001% of announced IPv4

Rank in Japan#201largest network in JP by IPv4 space, of 724 · 0.02% of JP

Rank worldwide#4,712of 79,396 networks with IPv4

IPv62 x /32 (131,072 x /48)2 prefixes

CountryJapan745 ASNs registered there

Open AS131937 in ASN lookup Look up an IP in this network (103.118.92.1) All networks in Japan

IPv4 prefixes

All 9 prefixes, in address order.

103.118.92.0/22
103.152.66.0/23
126.251.0.0/19
126.251.32.0/21
126.251.112.0/21
126.251.128.0/19
170.249.64.0/21
170.249.96.0/19
202.223.12.0/22

IPv6 prefixes

All 2 prefixes.

2403:4040::/32
2406:2b40::/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