218.21.240.0/20 RPKI valid
Announced by AS4837 China Unicom Backbone.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS4837 China Unicom Backbone | RPKI valid | 42 | 3454955114837 | 2026-09-18 | 2026-10-20 |
RPKI
2 ROAs cover this prefix
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 218.21.128.0/17
- RIR
- APNIC
- Country
- 🇨🇳 CN
- Status
- allocated
- Allocated
- 2001-04-12
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 218.21.128.0/17 v4 | AS4837 China Unicom Backbone | RPKI valid | 42 | 3454955114837 | 2026-09-18 |
More specific routes
3 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 218.21.248.0/22 v4 | AS139007 UNICOM InnerMongolia province network | RPKI valid | 42 | 2026-09-18 |
| 218.21.252.0/23 v4 | AS139007 UNICOM InnerMongolia province network | RPKI valid | 42 | 2026-09-18 |
| 218.21.254.0/24 v4 | AS139007 UNICOM InnerMongolia province network | RPKI valid | 42 | 2026-09-18 |