Longest Match / Organisations

Registered organisation

The Mastermind Holding B.V.

Address space registered to The Mastermind Holding B.V., and where it is announced from.

Registered holders come from the bulk whois that RIPE, APNIC and AFRINIC publish. ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.

IPv4 addresses
2,816
IPv6 /64s
145,843,617,792
Registered blocks
19
Countries
3

What this tells you

  • Holds 2,816 IPv4 addresses and 145,843,617,792 IPv6 /64 networks across 19 registered blocks.
  • Announced by 7 networks, the largest being AS44103 The Mastermind Holding B.V. at 36% of the IPv4 space.
  • Its space resolves to 3 countries, mostly Netherlands (73% of the IPv4 space).

Networks announcing this space

Space announced by a network covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.

NetworkIPv4 shareIPv6 share
AS44103 The Mastermind Holding B.V.36%100%
AS211041 Connectra B.V.18%-
AS16276 OVH SAS18%-
AS214036 Ultahost, Inc.9%-
AS62904 Eonix Corporation9%-
AS214639 TAKEHOST OU9%-
Everything else (1 more)-<0.1%

Countries this space resolves to

Space we can place in a country covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.

CountryIPv4 shareIPv6 share
Netherlands73%100%
Germany18%-
Singapore9%-

An operator of the same name runs networks of its own: see The Mastermind Holding B.V. for the networks side of the same company.

Holding a block is a registry fact, not a physical one. The organisation named here is who the block is assigned to, which is often a customer of the network operator announcing it.

Every figure on this page is also JSON: /api/v2/directory/org/the-mastermind-holding-b-v. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.