Network · data from 2026-11-12
AS4583 THOMSON-REUTERS - West Publishing Corporation
Registry name: THOMSON-REUTERS - West Publishing Corporation, US · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS4583, 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.
| 155.46.165.0/24 | No ROA | None | 673 100% |
| 155.46.168.0/22 | No ROA | None | 673 100% |
| 155.46.172.0/22 | No ROA | None | 673 100% |
| 155.46.144.0/22 | No ROA | RIR databaseARIN | 672 100% |
| 155.46.156.0/23 | No ROA | RIR databaseARIN | 672 100% |
| 155.46.136.0/22 | No ROA | RIR databaseARIN | 669 99% |
| 155.46.152.0/23 | No ROA | RIR databaseARIN | 669 99% |
AS-SET
AS4583 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 17 are in fix.csv.
- ROA: none7
- Route object: none3
- Route object: not announced7
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 155.46.165.0/24 | No ROA covers it. Add a ROA for AS4583, maxLength 24. |
| Route object: none | 155.46.165.0/24 | No route object for it. Add a route object with origin AS4583 in the RIR database for the space. |
| ROA: none | 155.46.168.0/22 | No ROA covers it. Add a ROA for AS4583, maxLength 22. |
| Route object: none | 155.46.168.0/22 | No route object for it. Add a route object with origin AS4583 in the RIR database for the space. |
| ROA: none | 155.46.172.0/22 | No ROA covers it. Add a ROA for AS4583, maxLength 22. |
| Route object: none | 155.46.172.0/22 | No route object for it. Add a route object with origin AS4583 in the RIR database for the space. |
| ROA: none | 155.46.144.0/22 | No ROA covers it. Add a ROA for AS4583, maxLength 22. |
| ROA: none | 155.46.156.0/23 | No ROA covers it. Add a ROA for AS4583, maxLength 23. |
| ROA: none | 155.46.136.0/22 | No ROA covers it. Add a ROA for AS4583, maxLength 22. |
| ROA: none | 155.46.152.0/23 | No ROA covers it. Add a ROA for AS4583, maxLength 23. |
Route objects not announced
Route objects with origin AS4583 whose prefix no peer sees AS4583 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 155.46.140.0/22 | ARIN | No ROA |
| 155.46.148.0/22 | ARIN | No ROA |
| 155.46.154.0/23 | ARIN | No ROA |
| 164.57.0.0/17 | ARIN | No ROA |
| 164.57.128.0/18 | ARIN | No ROA |
| 192.251.5.0/24 | ARIN | No ROA |
| 2620:115:40fe::/48 | 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.