Longest Match / Organisations

Registered organisation

Pavel Zizka

Address space registered to Pavel Zizka, 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 ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.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
4,608
IPv6 /64s
68,719,476,736
Registered blocks
10
Countries
3

What this tells you

  • Holds 4,608 IPv4 addresses and 68,719,476,736 IPv6 /64 networks across 10 registered blocks.
  • One network announces this space, AS200918 Pavel Zizka, covering 100% of the IPv4 space.
  • Its space resolves to 3 countries, mostly Czechia (50% of the IPv4 space).

Networks announcing this space

Space announced by a network covers 100% of this holder's IPv4 space and 50% of its IPv6 space. The table below divides that space.

NetworkIPv4 shareIPv6 share
AS200918 Pavel Zizka100%100%

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
Czechia50%100%
Spain44%-
Slovakia6%-

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/pavel-zizka. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.