Registered organisation
Core-Backbone GmbH
Address space registered to Core-Backbone GmbH, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
37,632
IPv6 /64s
68,719,476,738
Registered blocks
88
Countries
7
What this tells you
- Holds 37,632 IPv4 addresses and 68,719,476,738 IPv6 /64 networks across 88 registered blocks.
- Announced by 3 networks, the largest being AS51191 Core-Backbone GmbH at 97% of the IPv4 space.
- Its space resolves to 7 countries, mostly Germany (97% of the IPv4 space).
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS51191 Core-Backbone GmbH | 97% | 100% | |
| AS207821 IN InternetNord GmbH | 3% | - | |
| Everything else, including space not announced (1 more) | - | <0.1% |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Germany | 97% | 100% | |
| Switzerland | 2% | <0.1% | |
| Czechia | 0.7% | - | |
| United Kingdom | 0.4% | - | |
| Sweden | 0.2% | - | |
| Everything else, including space we cannot place (2 more) | <0.1% | - |
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.