Registered organisation
Federal Institute of Technology Zurich (ETHZ)
Address space registered to Federal Institute of Technology Zurich (ETHZ), 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
104,448
IPv6 /64s
196,611
Registered blocks
8
Countries
1
What this tells you
- Holds 104,448 IPv4 addresses and 196,611 IPv6 /64 networks across 8 registered blocks.
- One network announces this space, AS559 SWITCH, covering 99% of the IPv4 space.
- All of the space we can place resolves to Switzerland.
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS559 SWITCH | 99% | 67% | |
| Not announced to the internet | 0.2% | 33% |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Switzerland | 100% | 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.