Autonomous System
AS42081 European Centre for Medium-Range Weather Forecasts (ECMWF)
GovernmentActiveUnited KingdomRIPE
AS42081 (ecmwf-it) is a government network operated by European Centre for Medium-Range Weather Forecasts (ECMWF) in United Kingdom, registered with RIPE. It has 7 IPv4 prefixes with 28,416 addresses and 2 IPv6 prefixes, which makes it the 5,693rd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses28,416in 7 prefixes
IPv6 prefixes2≈ 2.4 × 10²⁴ addresses
Size rank#5,693of 82,200 active ASNs
Details
OrganizationEuropean Centre for Medium-Range Weather Forecasts (ECMWF)
AS nameecmwf-it
Websiteecmwf.int
Country United Kingdom (GB)
Network typeGovernment
RegistryRIPE
Abuse contactnetsec-ext@ecmwf.int
Registered2018-12-14
Last updated2022-10-08
IPv4 prefixes
7 prefixes · 28,416 addresses| Network | Addresses | First – last address |
|---|---|---|
| 136.156.192.0/18 | 16,384 | 136.156.192.0 – 136.156.255.255 |
| 136.156.128.0/20 | 4,096 | 136.156.128.0 – 136.156.143.255 |
| 136.156.144.0/20 | 4,096 | 136.156.144.0 – 136.156.159.255 |
| 136.156.40.0/21 | 2,048 | 136.156.40.0 – 136.156.47.255 |
| 136.156.32.0/22 | 1,024 | 136.156.32.0 – 136.156.35.255 |
| 77.83.224.0/23 | 512 | 77.83.224.0 – 77.83.225.255 |
| 77.83.226.0/24 | 256 | 77.83.226.0 – 77.83.226.255 |
136.156.192.0/18 136.156.128.0/20 136.156.144.0/20 136.156.40.0/21 136.156.32.0/22 77.83.224.0/23 77.83.226.0/24
IPv6 prefixes
2 prefixes- 2a09:9180:ecfb::/48
- 2a09:9180:ecfd::/48
2a09:9180:ecfb::/48 2a09:9180:ecfd::/48
Query AS42081 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS42081&key=YOUR_API_KEY"Any address in its prefixes resolves to AS42081, with or without a key:
curl "https://api.ipapi.is/?q=136.156.192.1"