172.99.212.0/22 no ROA
Announced by AS13838 Emerson College.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS13838 Emerson College | no ROA | 43 | 37721335613838 | 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
- 172.99.212.0/22
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 2021-01-06
Less specific routes
Announced prefixes that contain this one
Nothing less specific is announced.
More specific routes
3 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 172.99.212.0/23 v4 | AS13838 Emerson College | no ROA | 42 | 2026-09-18 |
| 172.99.214.0/24 v4 | AS13838 Emerson College | no ROA | 43 | 2026-09-18 |
| 172.99.215.0/24 v4 | AS13838 Emerson College | no ROA | 42 | 2026-09-18 |