Longest Match / Organisations

Registered organisation

University of Warsaw

Address space registered to University of Warsaw, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.

IPv4 addresses
33,024
IPv6 /64s
4,294,967,297
Registered blocks
5
Countries
1

What this tells you

  • Holds 33,024 IPv4 addresses and 4,294,967,297 IPv6 /64 networks across 5 registered blocks.
  • Announced by 3 networks, the largest being AS8890 University of Warsaw at 88% of the IPv4 space.
  • All of the space we can place resolves to Poland.

Networks announcing this space

NetworkIPv4 shareIPv6 share
AS8890 University of Warsaw88%50%
AS15665 Instytut Geofizyki PAN8%-
AS20555 Akademia WIT w Warszawie5%-
Not announced to the internet-50%

Countries this space resolves to

CountryIPv4 shareIPv6 share
Poland100%100%

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.