Registered organisation
Universitaet zu Koeln
Address space registered to Universitaet zu Koeln, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
66,816
IPv6 /64s
34,359,738,369
Registered blocks
5
Countries
1
What this tells you
- Holds 66,816 IPv4 addresses and 34,359,738,369 IPv6 /64 networks across 5 registered blocks.
- Announced entirely by AS5520 Universitaet zu Koeln.
- All of the space we can place resolves to Germany.
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS5520 Universitaet zu Koeln | 99% | 100% | |
| Not announced to the internet | 0.4% | - |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Germany | 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.