Network · data from 2026-11-12
AS42081 ecmwf-it European Centre for Medium-Range Weather Forecasts (ECMWF)
Registry name: ecmwf-it European Centre for Medium-Range Weather Forecasts (ECMWF), GB · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS42081, things to look at first. Visibility = full-table peers that see it, of 673 (IPv4) and 636 (IPv6) on 75 collectors. Also as routes.csv.
| 136.156.195.64/30 | No ROA | Nonecovered by 136.156.192.0/18 | 2 0%low visibility |
| 136.156.195.68/30 | No ROA | Nonecovered by 136.156.192.0/18 | 2 0%low visibility |
| 77.83.226.0/24 | No ROA | RIR databaseRIPE | 672 100% |
| 77.83.224.0/23 | No ROA | RIR databaseRIPE | 671 100% |
| 136.156.32.0/22 | No ROA | RIR databaseRIPE | 671 100% |
| 136.156.40.0/21 | No ROA | RIR databaseRIPE | 671 100% |
| 136.156.144.0/20 | No ROA | RIR databaseRIPE | 671 100% |
| 136.156.192.0/18 | No ROA | RIR databaseRIPE | 671 100% |
| 136.156.128.0/20 | No ROA | RIR databaseRIPE | 668 99% |
| 2a09:9180:ecfb::/48 | No ROA | RIR databaseRIPE | 635 100% |
| 2a09:9180:ecfd::/48 | No ROA | RIR databaseRIPE | 635 100% |
AS-SET
AS42081 isn't in PeeringDB, where networks name their AS-SET.
Fix list
The changes that would bring RPKI, the IRR and what's announced into line. Some are deliberate (a route object kept for a backup route, say); the network decides. All 16 are in fix.csv.
- ROA: none11
- Route object: none2
- Route object: not announced3
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 136.156.195.64/30 | No ROA covers it. Add a ROA for AS42081, maxLength 30. |
| Route object: none | 136.156.195.64/30 | No route object for it. A route object for 136.156.192.0/18 with origin AS42081 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS42081 in the RIR database for the space. |
| ROA: none | 136.156.195.68/30 | No ROA covers it. Add a ROA for AS42081, maxLength 30. |
| Route object: none | 136.156.195.68/30 | No route object for it. A route object for 136.156.192.0/18 with origin AS42081 covers it (too long for filters allowing more-specifics up to /24). Add a route object with origin AS42081 in the RIR database for the space. |
| ROA: none | 77.83.226.0/24 | No ROA covers it. Add a ROA for AS42081, maxLength 24. |
| ROA: none | 77.83.224.0/23 | No ROA covers it. Add a ROA for AS42081, maxLength 23. |
| ROA: none | 136.156.32.0/22 | No ROA covers it. Add a ROA for AS42081, maxLength 22. |
| ROA: none | 136.156.40.0/21 | No ROA covers it. Add a ROA for AS42081, maxLength 21. |
| ROA: none | 136.156.144.0/20 | No ROA covers it. Add a ROA for AS42081, maxLength 20. |
| ROA: none | 136.156.192.0/18 | No ROA covers it. Add a ROA for AS42081, maxLength 18. |
| ROA: none | 136.156.128.0/20 | No ROA covers it. Add a ROA for AS42081, maxLength 20. |
| ROA: none | 2a09:9180:ecfb::/48 | No ROA covers it. Add a ROA for AS42081, maxLength 48. |
| ROA: none | 2a09:9180:ecfd::/48 | No ROA covers it. Add a ROA for AS42081, maxLength 48. |
Route objects not announced
Route objects with origin AS42081 whose prefix no peer sees AS42081 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 77.83.224.0/22 | RIPE | No ROA |
| 136.156.128.0/19 | RIPE | No ROA |
| 2a09:9180:ec00::/42 | RIPE | No ROA |
Routes: the 08:00 UTC snapshots of 2026-11-12 from 75 RIPE RIS and RouteViews collectors. RPKI: our rpki-client run before the snapshot. IRR: the day's dumps of the five RIR databases and RADB's mirrors. The LEVEL3 and IDNIC databases publish no dump and aren't read, so route objects only there count as none.