Network · data from 2026-11-12
AS15951 Dow Jones & Company, Inc (London)
Registry name: DJUK Dow Jones & Company, Inc., US · PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS15951, 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.
| 205.203.99.0/24 | No ROA | Other IRR onlyNTTCOM, RADB | 673 100% |
| 205.203.117.0/24 | No ROA | Other IRR onlyRIPE-NONAUTH | 673 100% |
| 185.94.177.0/24 | Valid | Other IRR onlyALTDB | 673 100% |
| 185.94.178.0/24 | Valid | Other IRR onlyALTDB | 673 100% |
| 185.94.176.0/24 | Valid | RIR databaseRIPE | 673 100% |
| 193.41.164.0/23 | Valid | RIR databaseRIPE | 673 100% |
AS-SET
AS15951's PeeringDB record names no 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 10 are in fix.csv.
- ROA: none2
- Route object: RIR4
- Route object: not announced4
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 205.203.99.0/24 | No ROA covers it. Add a ROA for AS15951, maxLength 24. |
| Route object: RIR | 205.203.99.0/24 | Route object only in NTTCOM, RADB. Add it in the RIR database for the space. |
| ROA: none | 205.203.117.0/24 | No ROA covers it. Add a ROA for AS15951, maxLength 24. |
| Route object: RIR | 205.203.117.0/24 | Route object only in RIPE-NONAUTH. Add it in the RIR database for the space. |
| Route object: RIR | 185.94.177.0/24 | Route object only in ALTDB. Add it in the RIR database for the space. |
| Route object: RIR | 185.94.178.0/24 | Route object only in ALTDB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS15951 whose prefix no peer sees AS15951 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 193.41.164.0/22 | RIPE | No ROA |
| 193.41.166.0/23 | RIPE | No ROA |
| 205.203.119.0/24 | RIPE-NONAUTH | No ROA |
| 212.127.17.128/25 | RIPE | Invalid: origin |
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.