55.51.0.0/16 no ROA
Announced by AS306 United States Department of Defense (DoD).
Origin
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
- 55.0.0.0/8
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1996-10-26
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 55.0.0.0/8 v4 | AS721 United States Department of Defense (DoD) | no ROA | 43 | 377213356721 | 2026-09-18 |
More specific routes
2 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 55.51.56.0/24 v4 | AS329 United States Department of Defense (DoD) | no ROA | 44 | 2026-09-28 |
| 55.51.57.0/24 v4 | AS329 United States Department of Defense (DoD) | no ROA | 44 | 2026-09-28 |
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-07 18:10:19Z | origin change | AS329 → AS306 | 2448229143356721721270641540306 |
| 2026-10-07 18:10:18Z | origin change | AS306 → AS329 | 35493356721721270641540306329 |
| 2026-10-07 18:10:12Z | origin change | AS329 → AS306 | 333333203356721721270641540306 |
| 2026-10-07 18:10:08Z | origin change | AS306 → AS329 | 149073356721721270641540306329 |
| 2026-10-07 18:10:07Z | origin change | AS329 → AS306 | 2448229143356721721270641540306 |
| 2026-10-07 18:10:06Z | origin change | AS329 → AS306 | 580571743356721721270641540306 |
| 2026-10-07 18:10:01Z | origin change | AS306 → AS329 | 1328253356721721270641540306329 |
| 2026-10-07 18:09:58Z | origin change | AS329 → AS306 | 2040921989781743356721721270641540306 |
| 2026-10-07 18:09:55Z | origin change | AS306 → AS329 | 70183356721721270641540306329 |
| 2026-10-07 18:09:54Z | origin change | AS306 → AS329 | 138309713356721721270641540306329 |