Network · data from 2026-11-12
AS14864 GREENWICH - NatWest Markets Securities Inc.
Registry name: GREENWICH - NatWest Markets Securities Inc., US · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS14864, 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.
| 146.121.20.0/24 | No ROA | Nonecovered by 146.121.0.0/16 | 673 100% |
| 146.121.21.0/24 | No ROA | Nonecovered by 146.121.0.0/16 | 673 100% |
| 146.121.23.0/24 | No ROA | Other origin onlycovered by 146.121.0.0/16 | 673 100% |
AS-SET
AS14864 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: none3
- Route object: none3
- Route object: not announced2
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 146.121.20.0/24 | No ROA covers it. Add a ROA for AS14864, maxLength 24. |
| Route object: none | 146.121.20.0/24 | No route object for it. A route object for 146.121.0.0/16 with origin AS14864 covers it (filters allowing more-specifics accept it). Add a route object with origin AS14864 in the RIR database for the space. |
| ROA: none | 146.121.21.0/24 | No ROA covers it. Add a ROA for AS14864, maxLength 24. |
| Route object: none | 146.121.21.0/24 | No route object for it. A route object for 146.121.0.0/16 with origin AS14864 covers it (filters allowing more-specifics accept it). Add a route object with origin AS14864 in the RIR database for the space. |
| ROA: none | 146.121.23.0/24 | No ROA covers it. Add a ROA for AS14864, maxLength 24. |
| Route object: none | 146.121.23.0/24 | Route objects for it name AS46887. A route object for 146.121.0.0/16 with origin AS14864 covers it (filters allowing more-specifics accept it). Add a route object with origin AS14864 in the RIR database for the space. |
Route objects not announced
Route objects with origin AS14864 whose prefix no peer sees AS14864 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 146.121.0.0/16 | RADB | No ROA |
| 155.181.0.0/16 | RADB | 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.