147.241.72.0/21 no ROA
Announced by AS668 DoD High Performance Computing (Defense Research and Engineering Network).
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS668 DoD High Performance Computing (Defense Research and Engineering Network) | no ROA | 47 | 6939668 | 2026-09-18 | 2026-09-27 |
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
- 147.241.0.0/16
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1992-01-22
Less specific routes
Announced prefixes that contain this one
Nothing less specific is announced.
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-09-19 10:33:04Z | origin change | AS749 → AS668 | 328840327727174129969396939668 |
| 2026-09-19 10:32:36Z | origin change | AS668 → AS749 | 35493356749 |
| 2026-09-19 10:32:05Z | origin change | AS749 → AS668 | 380016939668 |
| 2026-09-19 10:32:01Z | origin change | AS668 → AS749 | 202365506731743356749 |
| 2026-09-19 10:31:37Z | origin change | AS749 → AS668 | 2064996939668 |
| 2026-09-19 10:31:31Z | origin change | AS668 → AS749 | 202365506731743356749 |
| 2026-09-19 10:31:31Z | origin change | AS749 → AS668 | 5805718366939668 |
| 2026-09-19 10:31:27Z | origin change | AS668 → AS749 | 2051484343356749 |
| 2026-09-19 10:31:24Z | origin change | AS749 → AS668 | 49134533566939668 |
| 2026-09-19 10:31:24Z | origin change | AS668 → AS749 | 349275665569393356749 |
| 2026-09-19 10:31:24Z | origin change | AS749 → AS668 | 348006939668 |
| 2026-09-19 10:31:24Z | origin change | AS749 → AS668 | 204092207666939668 |
| 2026-09-19 10:31:24Z | origin change | AS668 → AS749 | 2040922076612993356749 |
| 2026-09-19 10:31:10Z | origin change | AS668 → AS749 | 35493356749 |
| 2026-09-19 10:31:09Z | origin change | AS749 → AS668 | 503002914668 |
| 2026-09-19 10:30:53Z | origin change | AS668 → AS749 | 443935805769393356749 |
| 2026-09-19 10:30:50Z | origin change | AS749 → AS668 | 213241900233566939668 |
| 2026-09-19 10:30:49Z | origin change | AS668 → AS749 | 216285828067623356749 |
| 2026-09-19 10:30:48Z | origin change | AS749 → AS668 | 59919900233566939668 |
| 2026-09-19 10:30:39Z | origin change | AS749 → AS668 | 2950415935900233566939668 |
| 2026-09-19 10:30:38Z | origin change | AS668 → AS749 | 216285828067623356749 |
| 2026-09-19 10:30:38Z | origin change | AS668 → AS749 | 2040922076612993356749 |
| 2026-09-19 10:30:37Z | origin change | AS668 → AS749 | 494324836212993356749 |
| 2026-09-19 10:30:37Z | origin change | AS668 → AS749 | 578211258632573356749 |
| 2026-09-19 10:30:37Z | origin change | AS749 → AS668 | 2950415935900233566939668 |
| 2026-09-19 10:30:37Z | origin change | AS749 → AS668 | 2162858280174129969396939668 |
| 2026-09-19 10:30:37Z | origin change | AS749 → AS668 | 244822914129969396939668 |
| 2026-09-19 10:30:37Z | origin change | AS668 → AS749 | 2265212993356749 |
| 2026-09-19 10:30:37Z | origin change | AS749 → AS668 | 4608122146376939668 |
| 2026-09-19 10:30:37Z | origin change | AS668 → AS749 | 2064993454929143356749 |
| 2026-09-19 10:30:37Z | origin change | AS668 → AS749 | 70183356749 |
| 2026-09-19 10:30:37Z | origin change | AS749 → AS668 | 216285828033566939668 |
| 2026-09-19 10:30:37Z | origin change | AS668 → AS749 | 2020569393356749 |
| 2026-09-19 10:30:37Z | origin change | AS749 → AS668 | 4943248362900233566939668 |
| 2026-09-19 10:26:15Z | origin change | AS749 → AS668 | 503046939668 |
| 2026-09-19 10:26:12Z | origin change | AS668 → AS749 | 35493356749 |
| 2026-09-19 10:25:57Z | origin change | AS749 → AS668 | 2051484346939668 |
| 2026-09-19 10:25:56Z | origin change | AS668 → AS749 | 3288403277271743356749 |
| 2026-09-19 10:25:43Z | origin change | AS749 → AS668 | 138309716939668 |
| 2026-09-19 10:25:39Z | origin change | AS668 → AS749 | 35493356749 |
| 2026-09-19 10:25:35Z | origin change | AS749 → AS668 | 2064996939668 |
| 2026-09-19 10:25:31Z | origin change | AS668 → AS749 | 2023655067367623356749 |
| 2026-09-19 10:25:26Z | origin change | AS749 → AS668 | 49673204856939668 |
| 2026-09-19 10:25:25Z | origin change | AS668 → AS749 | 1328251743356749 |
| 2026-09-19 10:25:21Z | origin change | AS749 → AS668 | 5805718366939668 |
| 2026-09-19 10:25:19Z | origin change | AS668 → AS749 | 349275665512993356749 |
| 2026-09-19 10:25:19Z | origin change | AS749 → AS668 | 348006939668 |
| 2026-09-19 10:25:19Z | origin change | AS668 → AS749 | 5805718363356749 |
| 2026-09-19 10:25:19Z | origin change | AS749 → AS668 | 4943221551048362129969396939668 |
| 2026-09-19 10:25:14Z | origin change | AS668 → AS749 | 481853356749 |