Registered organisation
European Centre for Medium-Range Weather Forecasts (ECMWF)
Address space registered to European Centre for Medium-Range Weather Forecasts (ECMWF), 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 ARIN and LACNIC do not publish theirs, so space held in North and South America is largely unattributed here.
What this tells you
- Holds 66,560 IPv4 addresses and 4,294,967,296 IPv6 /64 networks across 3 registered blocks.
- Announced by 3 networks, the largest being AS42081 European Centre for Medium-Range Weather Forecasts (ECMWF) at 68% of the IPv4 space.
- All of the space we can place resolves to United Kingdom.
Networks announcing this space
Space announced by a network covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS42081 European Centre for Medium-Range Weather Forecasts (ECMWF) | 68% | 100% | |
| AS786 Jisc Services Limited | 20% | <0.1% | |
| AS680 Deutsches Forschungsnetz (DFN) | 12% | - |
Countries this space resolves to
Space we can place in a country covers 100% of this holder's IPv4 space and 100% of its IPv6 space. The table below divides that space.
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| United Kingdom | 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.
Every figure on this page is also JSON: /api/v2/directory/org/european-centre-for-medium-range-weather-forecasts-ecmwf. Breakdowns paginate from there, so a table showing the largest rows here returns all of them. Read the API.