btopenworld.com

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

3 clusters · 95,518 netblocks · 17,203,292 IPv4 addresses · 142 IPv6 prefixes

IPv6 ranges (142)

showing the 15 largest allocations

Member clusters