Network · data from 2026-11-12
AS57948 COBALT Cobalt Group BV
Registry name: COBALT Cobalt Group BV, BE · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS57948, 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.
| 195.253.208.0/24 | No ROA | RIR databaseRIPE | 671 100% |
| 195.253.209.0/24 | No ROA | RIR databaseRIPE | 671 100% |
| 195.253.210.0/24 | No ROA | RIR databaseRIPE | 671 100% |
| 195.253.211.0/24 | No ROA | RIR databaseRIPE | 671 100% |
| 2.57.40.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 2.57.41.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 2.57.42.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 91.236.244.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 91.236.245.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 185.70.44.0/24 | Valid | RIR databaseRIPE | 671 100% |
| 2a05:2600::/29 | Valid | RIR databaseRIPE | 635 100% |
AS-SET
AS57948 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 23 are in fix.csv.
- ROA: none4
- Route object: not announced19
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 195.253.208.0/24 | No ROA covers it. Add a ROA for AS57948, maxLength 24. |
| ROA: none | 195.253.209.0/24 | No ROA covers it. Add a ROA for AS57948, maxLength 24. |
| ROA: none | 195.253.210.0/24 | No ROA covers it. Add a ROA for AS57948, maxLength 24. |
| ROA: none | 195.253.211.0/24 | No ROA covers it. Add a ROA for AS57948, maxLength 24. |
Route objects not announced
Route objects with origin AS57948 whose prefix no peer sees AS57948 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 2.57.40.0/22 | RIPE | Valid |
| 2.57.43.0/24 | RIPE | Valid |
| 46.19.7.0/24 | RIPE | No ROA |
| 91.236.244.0/23 | RIPE | Valid |
| 95.214.28.0/24 | RIPE | Invalid: origin |
| 95.214.29.0/24 | RIPE | Invalid: origin |
| 95.214.30.0/24 | RIPE | Invalid: origin |
| 95.214.31.0/24 | RIPE | Invalid: origin |
| 171.25.229.0/24 | RIPE | Valid |
| 185.70.44.0/22 | RIPE | Valid |
| 185.70.45.0/24 | RIPE | Valid |
| 185.70.46.0/24 | RIPE | Valid |
| 185.70.47.0/24 | RIPE | Valid |
| 2a05:2600::/32 | RIPE | Valid |
| 2a05:2601::/32 | RIPE | Valid |
| 2a05:2602::/32 | RIPE | Valid |
| 2a05:2603::/32 | RIPE | Valid |
| 2a05:2604::/32 | RIPE | Valid |
| 2a05:2607::/32 | RIPE | Valid |
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.