Network · data from 2026-11-12
AS205807 ESH Essener Systemhaus
Registry name: ESH Essener Systemhaus, DE · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS205807, 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.
| 185.150.51.0/24 | No ROA | Nonecovered by 185.150.50.0/23 | 673 100% |
| 185.150.48.0/22 | No ROA | RIR databaseRIPE | 673 100% |
| 185.150.48.0/23 | No ROA | RIR databaseRIPE | 673 100% |
| 185.150.50.0/23 | No ROA | RIR databaseRIPE | 673 100% |
| 2a0b:a5c0::/29 | No ROA | RIR databaseRIPE | 634 100% |
| 2a0b:a5c0::/30 | No ROA | RIR databaseRIPE | 634 100% |
AS-SET
AS205807 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 8 are in fix.csv.
- ROA: none6
- Route object: none1
- Route object: not announced1
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 185.150.51.0/24 | No ROA covers it. Add a ROA for AS205807, maxLength 24. |
| Route object: none | 185.150.51.0/24 | No route object for it. A route object for 185.150.50.0/23 with origin AS205807 covers it (filters allowing more-specifics accept it). Add a route object with origin AS205807 in the RIR database for the space. |
| ROA: none | 185.150.48.0/22 | No ROA covers it. Add a ROA for AS205807, maxLength 22. |
| ROA: none | 185.150.48.0/23 | No ROA covers it. Add a ROA for AS205807, maxLength 23. |
| ROA: none | 185.150.50.0/23 | No ROA covers it. Add a ROA for AS205807, maxLength 23. |
| ROA: none | 2a0b:a5c0::/29 | No ROA covers it. Add a ROA for AS205807, maxLength 29. |
| ROA: none | 2a0b:a5c0::/30 | No ROA covers it. Add a ROA for AS205807, maxLength 30. |
Route objects not announced
Route objects with origin AS205807 whose prefix no peer sees AS205807 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 2a0b:a5c4::/30 | 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.