Network · data from 2026-11-12
AS18185 NTCU-AS-TW - 4F, No.114, Sec.1, Chung-Shiao W. Road
Registry name: NTCU-AS-TW - 4F, No.114, Sec.1, Chung-Shiao W. Road, TW · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS18185, 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.
| 211.76.240.0/20 | Valid | Other IRR onlyNTTCOM, RADB | 673 100% |
AS-SET
AS18185 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 31 are in fix.csv.
- Route object: RIR1
- Route object: not announced30
| Change | Prefix or set | Detail |
|---|---|---|
| Route object: RIR | 211.76.240.0/20 | Route object only in NTTCOM, RADB. Add it in the RIR database for the space. |
Route objects not announced
Route objects with origin AS18185 whose prefix no peer sees AS18185 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 211.76.240.0/21 | RADB | Valid |
| 211.76.240.0/22 | RADB | Valid |
| 211.76.240.0/23 | RADB | Valid |
| 211.76.240.0/24 | RADB | Valid |
| 211.76.241.0/24 | RADB | Valid |
| 211.76.242.0/23 | RADB | Valid |
| 211.76.242.0/24 | RADB | Valid |
| 211.76.243.0/24 | RADB | Valid |
| 211.76.244.0/22 | RADB | Valid |
| 211.76.244.0/23 | RADB | Valid |
| 211.76.244.0/24 | RADB | Valid |
| 211.76.245.0/24 | RADB | Valid |
| 211.76.246.0/23 | RADB | Valid |
| 211.76.246.0/24 | RADB | Valid |
| 211.76.247.0/24 | RADB | Valid |
| 211.76.248.0/21 | RADB | Valid |
| 211.76.248.0/22 | RADB | Valid |
| 211.76.248.0/23 | RADB | Valid |
| 211.76.248.0/24 | RADB | Valid |
| 211.76.249.0/24 | RADB | Valid |
| 211.76.250.0/23 | RADB | Valid |
| 211.76.250.0/24 | RADB | Valid |
| 211.76.251.0/24 | RADB | Valid |
| 211.76.252.0/22 | RADB | Valid |
| 211.76.252.0/23 | RADB | Valid |
| 211.76.252.0/24 | RADB | Valid |
| 211.76.253.0/24 | RADB | Valid |
| 211.76.254.0/23 | RADB | Valid |
| 211.76.254.0/24 | RADB | Valid |
| 211.76.255.0/24 | RADB | 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.