222.203.136.0/21 no ROA
Announced by AS4538 China Education and Research Network Center.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS4538 China Education and Research Network Center | no ROA | 43 | 237644538 | 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
- 222.200.0.0/14
- RIR
- APNIC
- Country
- 🇨🇳 CN
- Status
- allocated
- Allocated
- 2004-07-07
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 222.203.0.0/16 v4 | AS4538 China Education and Research Network Center | no ROA | 43 | 244824538 | 2026-09-18 |
| 222.203.0.0/16 v4 | AS24357 CERNET2 IX at South China University of Technology | no ROA | 1 | 3822923855766023911453824357 | 2026-09-18 |
| 222.192.0.0/12 v4 | AS4538 China Education and Research Network Center | no ROA | 48 | 244824538 | 2026-09-18 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.