120.133.240.0/22 RPKI valid MOAS
Announced by 2 different origins, which is either a deliberate multi-origin setup or a hijack.
This prefix is announced by more than one AS. Compare how many collector
peers see each origin below: a hijack is usually visible as a second
origin seen by far fewer peers than the legitimate one.
Origins
RPKI
8 ROAs cover this prefix
| ROA prefix | Max length | Authorised origin | Trust anchor | Result for this route |
|---|---|---|---|---|
| 120.133.240.0/20 | /32 | AS4811 | apnic | wrong origin |
| 120.133.240.0/20 | /32 | AS9308 | apnic | wrong origin |
| 120.133.240.0/20 | /32 | AS9802 | apnic | wrong origin |
| 120.133.240.0/20 | /32 | AS17428 | apnic | authorises it |
| 120.133.240.0/20 | /32 | AS17621 | apnic | wrong origin |
| 120.133.240.0/20 | /32 | AS18244 | apnic | wrong origin |
| 120.133.240.0/20 | /32 | AS24400 | apnic | wrong origin |
| 120.133.240.0/20 | /32 | AS59020 | apnic | wrong origin |
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 120.133.0.0/16
- RIR
- APNIC
- Country
- 🇨🇳 CN
- Status
- allocated
- Allocated
- 2008-04-04
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 120.133.240.0/21 v4 | AS17428 VNET Group, Inc. | RPKI valid | 42 | 70184134481117428 | 2026-09-18 |
| 120.133.0.0/16 v4 | AS23724 China Telecom Beijing IDC Network | no ROA | 42 | 7018413423724 | 2026-09-18 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-14 03:34:56Z | origin change | AS18244 → AS17428 | 3288403277271744134481117428 |
| 2026-10-14 03:32:13Z | origin change | AS17428 → AS18244 | 37989563001321321009948371762118244 |
| 2026-10-07 16:19:59Z | origin change | AS18244 → AS17428 | 1490712994134481117428 |
| 2026-10-07 16:09:07Z | origin change | AS17428 → AS18244 | 37989563001321321009948371762118244 |