Network · data from 2026-11-12
AS133111 CNT-northChina - CERNET New Technology Co., Ltd
Registry name: CNT-northChina - CERNET New Technology Co., Ltd, CN · not in PeeringDB
Announced routes
Every prefix a peer of the route collectors sees with origin AS133111, 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.
| 42.245.221.0/24 | No ROA | Nonecovered by 42.245.192.0/18 | 672 100% |
| 42.245.192.0/18 | No ROA | RIR databaseAPNIC | 105 16% |
| 2403:a200:9999::/48 | Valid | None | 387 61% |
| 103.81.200.0/22 | Valid | None | 78 12% |
| 42.201.33.0/24 | Valid | RIR databaseAPNIC | 673 100% |
| 42.201.60.0/23 | Valid | RIR databaseAPNIC | 673 100% |
| 2400:a980::/29 | Valid | RIR databaseAPNIC | 634 100% |
| 240d:4000::/21 | Valid | RIR databaseAPNIC | 633 100% |
| 42.201.32.0/19 | Valid | RIR databaseAPNIC | 105 16% |
| 42.201.62.0/23 | Valid | RIR databaseAPNIC | 105 16% |
| 43.252.48.0/24 | Valid | RIR databaseAPNIC | 105 16% |
AS-SET
AS133111 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 86 are in fix.csv.
- ROA: none2
- Route object: none3
- Route object: not announced81
| Change | Prefix or set | Detail |
|---|---|---|
| ROA: none | 42.245.221.0/24 | No ROA covers it. Add a ROA for AS133111, maxLength 24. |
| Route object: none | 42.245.221.0/24 | No route object for it. A route object for 42.245.192.0/18 with origin AS133111 covers it (filters allowing more-specifics accept it). Add a route object with origin AS133111 in the RIR database for the space. |
| ROA: none | 42.245.192.0/18 | No ROA covers it. Add a ROA for AS133111, maxLength 18. |
| Route object: none | 2403:a200:9999::/48 | No route object for it. Add a route object with origin AS133111 in the RIR database for the space. |
| Route object: none | 103.81.200.0/22 | No route object for it. Add a route object with origin AS133111 in the RIR database for the space. |
Route objects not announced
Route objects with origin AS133111 whose prefix no peer sees AS133111 announce. Many are kept on purpose (backup routes, space announced only in some places).
| 42.201.32.0/20 | APNIC | Valid |
| 42.201.32.0/21 | APNIC | Valid |
| 42.201.32.0/22 | APNIC | Valid |
| 42.201.32.0/23 | APNIC | Valid |
| 42.201.32.0/24 | APNIC | Valid |
| 42.201.34.0/23 | APNIC | Valid |
| 42.201.34.0/24 | APNIC | Valid |
| 42.201.35.0/24 | APNIC | Valid |
| 42.201.36.0/22 | APNIC | Valid |
| 42.201.36.0/23 | APNIC | Valid |
| 42.201.36.0/24 | APNIC | Valid |
| 42.201.37.0/24 | APNIC | Valid |
| 42.201.38.0/23 | APNIC | Valid |
| 42.201.38.0/24 | APNIC | Valid |
| 42.201.39.0/24 | APNIC | Valid |
| 42.201.40.0/21 | APNIC | Valid |
| 42.201.40.0/22 | APNIC | Valid |
| 42.201.40.0/23 | APNIC | Valid |
| 42.201.40.0/24 | APNIC | Valid |
| 42.201.41.0/24 | APNIC | Valid |
| 42.201.42.0/23 | APNIC | Valid |
| 42.201.42.0/24 | APNIC | Valid |
| 42.201.43.0/24 | APNIC | Valid |
| 42.201.44.0/22 | APNIC | Valid |
| 42.201.44.0/23 | APNIC | Valid |
| 42.201.44.0/24 | APNIC | Valid |
| 42.201.45.0/24 | APNIC | Valid |
| 42.201.46.0/23 | APNIC | Valid |
| 42.201.46.0/24 | APNIC | Valid |
| 42.201.47.0/24 | APNIC | Valid |
| 42.201.48.0/20 | APNIC | Valid |
| 42.201.48.0/21 | APNIC | Valid |
| 42.201.48.0/22 | APNIC | Valid |
| 42.201.48.0/23 | APNIC | Valid |
| 42.201.48.0/24 | APNIC | Valid |
| 42.201.49.0/24 | APNIC | Valid |
| 42.201.50.0/23 | APNIC | Valid |
| 42.201.50.0/24 | APNIC | Valid |
| 42.201.51.0/24 | APNIC | Valid |
| 42.201.52.0/22 | APNIC | Valid |
| 42.201.52.0/23 | APNIC | Valid |
| 42.201.52.0/24 | APNIC | Valid |
| 42.201.53.0/24 | APNIC | Valid |
| 42.201.54.0/23 | APNIC | Valid |
| 42.201.54.0/24 | APNIC | Valid |
| 42.201.55.0/24 | APNIC | Valid |
| 42.201.56.0/21 | APNIC | Valid |
| 42.201.56.0/22 | APNIC | Valid |
| 42.201.56.0/23 | APNIC | Valid |
| 42.201.56.0/24 | APNIC | Valid |
| 42.201.57.0/24 | APNIC | Valid |
| 42.201.58.0/23 | APNIC | Valid |
| 42.201.58.0/24 | APNIC | Valid |
| 42.201.59.0/24 | APNIC | Valid |
| 42.201.60.0/22 | APNIC | Valid |
| 42.201.60.0/24 | APNIC | Valid |
| 42.201.61.0/24 | APNIC | Valid |
| 42.201.62.0/24 | APNIC | Valid |
| 42.201.63.0/24 | APNIC | Valid |
| 2400:a980::/40 | APNIC | Invalid: maxLength |
| 2400:a980:bf::/48 | APNIC | Invalid: maxLength |
| 2400:a980:d1::/48 | APNIC | Invalid: maxLength |
| 2400:a980:da::/48 | APNIC | Invalid: maxLength |
| 2400:a980:e1::/48 | APNIC | Invalid: maxLength |
| 2400:a980:e3::/48 | APNIC | Invalid: maxLength |
| 2400:a980:ef::/48 | APNIC | Invalid: maxLength |
| 2400:a980:1800::/40 | APNIC | Invalid: maxLength |
| 2400:a980:18fe::/48 | APNIC | Invalid: maxLength |
| 2400:a980:18ff::/48 | APNIC | Invalid: maxLength |
| 2400:a980:2000::/40 | APNIC | Invalid: maxLength |
| 2400:a980:2800::/40 | APNIC | Invalid: maxLength |
| 2400:a980:2c00::/40 | APNIC | Invalid: maxLength |
| 2400:a980:5800::/40 | APNIC | Invalid: maxLength |
| 2400:a980:6400::/40 | APNIC | Invalid: maxLength |
| 2400:a980:6800::/40 | APNIC | Invalid: maxLength |
| 2400:a980:7400::/40 | APNIC | Invalid: maxLength |
| 2400:a980:7800::/40 | APNIC | Invalid: maxLength |
| 2400:a980:9000::/40 | APNIC | Invalid: maxLength |
| 2400:a980:90fd::/48 | APNIC | Invalid: maxLength |
| 2400:a980:90ff::/48 | APNIC | Invalid: maxLength |
| 2400:a980:a000::/40 | APNIC | 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.