Network · data from 2026-11-12
AS201727 AS_BUBAKOV Blond & Brown s.r.o.
Registry name: AS_BUBAKOV Blond & Brown s.r.o., CZ · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS201727, 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.
| 45.140.240.0/22 | No ROA | RIR databaseRIPE | 673 100% |
| 185.64.40.0/22 | No ROA | RIR databaseRIPE | 673 100% |
| 2a03:1160::/40 | No ROA | RIR databaseRIPE | 635 100% |
AS-SET
AS201727 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 3 are in fix.csv.
- ROA: none3
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 45.140.240.0/22 | No ROA covers it. Add a ROA for AS201727, maxLength 22. |
| ROA: none | 185.64.40.0/22 | No ROA covers it. Add a ROA for AS201727, maxLength 22. |
| ROA: none | 2a03:1160::/40 | No ROA covers it. Add a ROA for AS201727, maxLength 40. |
Route objects not announced
Every route object with origin AS201727 is announced.
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.