120.133.237.0/24 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
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS4811 China Telecom Shanghai IDC Network | RPKI valid | 28 | 701841344811 | 2026-09-18 | 2026-09-18 |
| AS17621 China Unicom Shanghai network | RPKI valid | 13 | 345495511483717621 | 2026-09-18 | 2026-09-18 |
RPKI
10 ROAs cover this prefix
| ROA prefix | Max length | Authorised origin | Trust anchor | Result for this route |
|---|---|---|---|---|
| 120.133.224.0/20 | /32 | AS4811 | apnic | authorises it |
| 120.133.224.0/20 | /32 | AS9308 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS9802 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS17428 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS17621 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS23724 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS24400 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS56046 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS59020 | apnic | wrong origin |
| 120.133.224.0/20 | /32 | AS133111 | 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 |
|---|---|---|---|---|---|
| 120.133.236.0/22 v4 | AS17428 VNET Group, Inc. | RPKI valid | 2 | 55720174765845398082440017428 | 2026-09-18 |
| 120.133.0.0/16 v4 | AS23724 China Telecom Beijing IDC Network | no ROA | 41 | 7018413423724 | 2026-09-18 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-09-18 06:49:03Z | origin change | AS17621 → AS4811 | 557202376441344811 |
| 2026-09-18 06:29:50Z | origin change | AS4811 → AS17621 | 3492756655483717621 |
| 2026-09-18 05:42:29Z | origin change | AS17621 → AS4811 | 557202376441344811 |
| 2026-09-18 05:28:20Z | origin change | AS4811 → AS17621 | 4967320485483717621 |
| 2026-09-18 04:41:33Z | origin change | AS17621 → AS4811 | 557209930291441344811 |
| 2026-09-18 04:36:57Z | origin change | AS17621 → AS4811 | 557202376441344811 |
| 2026-09-18 04:16:58Z | origin change | AS17621 → AS4811 | 557202376441344811 |