58.207.0.0/16 no ROA 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 |
|---|---|---|---|---|---|
| AS4538 China Education and Research Network Center | no ROA | 41 | 244824538 | 2026-09-18 | 2026-09-22 |
| AS24348 CERNET2 IX at Tsinghua University | no ROA | 1 | 3822923855766023911453824348 | 2026-09-18 | 2026-09-22 |
RPKI
No ROA covers this prefix
No ROA covers this prefix, so origin validation returns "unknown". That is not a fault; most of the table is still unsigned.
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 58.200.0.0/13
- RIR
- APNIC
- Country
- 🇨🇳 CN
- Status
- allocated
- Allocated
- 2005-05-26
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 58.200.0.0/13 v4 | AS4538 China Education and Research Network Center | no ROA | 48 | 244824538 | 2026-09-18 |
| 58.192.0.0/12 v4 | AS4538 China Education and Research Network Center | no ROA | 48 | 244824538 | 2026-09-18 |
More specific routes
8 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 58.207.0.0/17 v4 | AS4538 China Education and Research Network Center | no ROA | 4 | 2026-09-18 |
| 58.207.8.0/21 v4 | AS4538 China Education and Research Network Center | no ROA | 4 | 2026-09-18 |
| 58.207.16.0/20 v4 | AS4538 China Education and Research Network Center | no ROA | 4 | 2026-09-18 |
| 58.207.30.0/24 v4 | AS4538 China Education and Research Network Center | RPKI valid | 1 | 2026-09-18 |
| 58.207.64.0/18 v4 | AS4538 China Education and Research Network Center | no ROA | 4 | 2026-09-18 |
| 58.207.128.0/17 v4 | AS4538 China Education and Research Network Center | no ROA | 4 | 2026-09-18 |
| 58.207.254.0/24 v4 | AS4538 China Education and Research Network Center | RPKI valid | 4 | 2026-09-18 |
| 58.207.255.0/24 v4 | AS4538 China Education and Research Network Center | RPKI valid | 4 | 2026-09-18 |
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-09-21 09:20:13Z | origin change | AS24348 → AS4538 | 46081221463764534538453845384538 |
| 2026-09-21 09:16:34Z | origin change | AS4538 → AS24348 | 4608757511537766023911453824348 |
| 2026-09-21 08:50:34Z | origin change | AS24348 → AS4538 | 46081221463764534538453845384538 |
| 2026-09-21 08:47:28Z | origin change | AS4538 → AS24348 | 4608757511537766023911453824348 |
| 2026-09-20 10:54:18Z | origin change | AS24348 → AS4538 | 14907335664534538453845384538 |
| 2026-09-20 10:54:17Z | origin change | AS4538 → AS24348 | 46087575244902448923911453824348 |
| 2026-09-18 08:32:48Z | origin change | AS24348 → AS4538 | 333311032096545384538 |
| 2026-09-18 08:32:20Z | origin change | AS4538 → AS24348 | 333311032096523911453824348 |
| 2026-09-18 08:31:25Z | origin change | AS24348 → AS4538 | 3333125764534538453845384538 |
| 2026-09-18 08:29:35Z | origin change | AS4538 → AS24348 | 333311032096523911453824348 |
| 2026-09-18 05:23:24Z | origin change | AS24348 → AS4538 | 701864534538453845384538 |