Longest Match / Organisations

Registered organisation

CETIN a.s.

Address space registered to CETIN a.s., 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 ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.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
145,496
IPv6 /64s
38,654,705,660
Registered blocks
10
Countries
1

What this tells you

  • Holds 145,496 IPv4 addresses and 38,654,705,660 IPv6 /64 networks across 10 registered blocks.
  • Announced entirely by AS28725 CETIN a.s..
  • All of the space we can place resolves to Czechia.

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
AS28725 CETIN a.s.100%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
Czechia100%100%

An operator of the same name runs networks of its own: see CETIN a.s. 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/cetin-a-s. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.