Registered organisation
CERN - European Organization for Nuclear Research
Address space registered to CERN - European Organization for Nuclear Research, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
354,816
IPv6 /64s
8,590,065,667
Registered blocks
54
Countries
1
What this tells you
- Holds 354,816 IPv4 addresses and 8,590,065,667 IPv6 /64 networks across 54 registered blocks.
- Announced entirely by AS513 CERN.
- All of the space we can place resolves to Switzerland.
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS513 CERN | 100% | 100% |
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.