121.0.16.0/20 RPKI valid
Announced by AS37963 Hangzhou Alibaba Advertising Co.,Ltd.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS37963 Hangzhou Alibaba Advertising Co.,Ltd. | RPKI valid | 41 | 70184134481137963 | 2026-09-18 | 2026-09-29 |
RPKI
1 ROA covers this prefix
| ROA prefix | Max length | Authorised origin | Trust anchor | Result for this route |
|---|---|---|---|---|
| 121.0.16.0/20 | /24 | AS37963 | apnic | authorises it |
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 121.0.16.0/20
- RIR
- APNIC
- Country
- 🇨🇳 CN
- Status
- allocated
- Allocated
- 2006-09-25
Less specific routes
Announced prefixes that contain this one
Nothing less specific is announced.
More specific routes
3 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 121.0.16.0/21 v4 | AS37963 Hangzhou Alibaba Advertising Co.,Ltd. | RPKI valid | 41 | 2026-09-18 |
| 121.0.24.0/22 v4 | AS37963 Hangzhou Alibaba Advertising Co.,Ltd. | RPKI valid | 41 | 2026-09-18 |
| 121.0.28.0/22 v4 | AS37963 Hangzhou Alibaba Advertising Co.,Ltd. | RPKI valid | 41 | 2026-09-18 |