157.21.0.0/16 no ROA
Announced by AS1201 Old Dominion University.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS1201 Old Dominion University | no ROA | 43 | 37721402201201 | 2026-09-18 | 2026-10-06 |
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
- 157.21.0.0/16
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1991-12-12
Less specific routes
Announced prefixes that contain this one
Nothing less specific is announced.
More specific routes
6 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 157.21.0.0/17 v4 | AS1201 Old Dominion University | no ROA | 13 | 2026-09-18 |
| 157.21.0.0/18 v4 | AS1201 Old Dominion University | no ROA | 17 | 2026-09-18 |
| 157.21.64.0/18 v4 | AS1201 Old Dominion University | no ROA | 17 | 2026-09-18 |
| 157.21.128.0/17 v4 | AS1201 Old Dominion University | no ROA | 13 | 2026-09-18 |
| 157.21.128.0/18 v4 | AS1201 Old Dominion University | no ROA | 17 | 2026-09-18 |
| 157.21.192.0/18 v4 | AS1201 Old Dominion University | no ROA | 17 | 2026-09-18 |