j-cnet.jp

One organisation, resolved across 3 separately-registered clusters linked by shared operating domain j-cnet.jp — not name similarity, so genuinely different organisations that share a name are excluded.
Data as of 2026-07-26

3 clusters · 1,393 netblocks · 25,278,367 IPv4 addresses · 130 IPv6 prefixes · 2 countries

IPv6 ranges (130)

showing the 15 largest allocations

Member clusters