12.107.172.0/24 no ROA
Announced by AS30356 Blue Cross Blue Shield of Michigan Mutual Insurance.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS30356 Blue Cross Blue Shield of Michigan Mutual Insurance | no ROA | 44 | 37721335630356 | 2026-09-18 | 2026-10-17 |
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
- 12.0.0.0/8
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1983-08-23
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 12.0.0.0/9 v4 | AS7018 AT&T Enterprises, LLC | no ROA | 42 | 345491747018 | 2026-09-18 |
| 12.0.0.0/8 v4 | AS7018 AT&T Enterprises, LLC | no ROA | 41 | 345491747018 | 2026-09-18 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.