Registered organisation
Universidade do Porto
Address space registered to Universidade do Porto, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
20,290
IPv6 /64s
65,541
Registered blocks
27
Countries
2
What this tells you
- Holds 20,290 IPv4 addresses and 65,541 IPv6 /64 networks across 27 registered blocks.
- Announced entirely by AS1930 Fundacao para a Ciencia e a Tecnologia, I.P..
- Its space resolves to 2 countries, mostly Portugal (99% of the IPv4 space).
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS1930 Fundacao para a Ciencia e a Tecnologia, I.P. | 100% | 100% |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Portugal | 99% | 100% | |
| Austria | 1% | - |
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.