o2.cz

One organisation, resolved across 2 separately-registered clusters linked by shared operating domain o2.cz — not name similarity, so genuinely different organisations that share a name are excluded.
Data as of 2026-07-26

2 clusters · 3,437 netblocks · 2,042,626 IPv4 addresses · 41 IPv6 prefixes

IPv6 ranges (41)

showing the 15 largest allocations

Member clusters