154.21.203.0/24 no ROA MOAS
Announced by 2 different origins, which is either a deliberate multi-origin setup or a hijack.
This prefix is announced by more than one AS. Compare how many collector
peers see each origin below: a hijack is usually visible as a second
origin seen by far fewer peers than the legitimate one.
Origins
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS979 NetLab Global | no ROA | 13 | 345496453979 | 2026-09-18 | 2026-10-19 |
| AS1014 NetLab Global | no ROA | 7 | 3800129141014 | 2026-10-15 | 2026-10-19 |
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
- 154.21.0.0/16
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1992-02-05
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 154.21.200.0/22 v4 | AS979 NetLab Global | no ROA | 43 | 345492914979 | 2026-09-18 |
| 154.21.0.0/16 v4 | AS174 Cogent Communications, LLC | no ROA | 41 | 34549174 | 2026-09-18 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-19 10:00:51Z | origin change | AS1014 → AS979 | 377216453979979979979 |
| 2026-10-18 12:33:19Z | origin change | AS979 → AS1014 | 17639900229141014 |
| 2026-10-15 19:46:23Z | origin change | AS1014 → AS979 | 494324836290026453979979979979 |
| 2026-10-15 17:57:51Z | origin change | AS979 → AS1014 | 5572029141014 |
| 2026-10-15 13:49:18Z | origin change | AS1014 → AS979 | 494324836290026453979979979979 |
| 2026-10-14 16:09:06Z | origin change | AS979 → AS1014 | 17639747329141014 |
| 2026-10-14 16:08:50Z | origin change | AS1014 → AS979 | 20409220766290752914979979 |
| 2026-10-14 16:08:48Z | origin change | AS979 → AS1014 | 4608757529141014 |
| 2026-10-14 16:08:40Z | origin change | AS1014 → AS979 | 1763990022914979979 |
| 2026-10-14 16:08:32Z | origin change | AS979 → AS1014 | 3800129141014 |
| 2026-10-14 16:08:29Z | origin change | AS1014 → AS979 | 3333110324785129562914979979 |
| 2026-10-14 16:08:28Z | origin change | AS979 → AS1014 | 5572029141014 |
| 2026-10-14 16:08:26Z | origin change | AS1014 → AS979 | 333311362914979979 |
| 2026-10-14 16:08:26Z | origin change | AS979 → AS1014 | 3798956300132132465729141014 |
| 2026-10-14 07:38:14Z | origin change | AS1014 → AS979 | 44393401753348723513355112914979 |
| 2026-10-14 07:36:06Z | origin change | AS979 → AS1014 | 1403577645329149791014 |
| 2026-10-14 07:35:58Z | origin change | AS1014 → AS979 | 2040923401929169352808966138997979 |
| 2026-10-14 07:28:29Z | origin change | AS979 → AS1014 | 3333125729149791014 |
| 2026-10-14 07:28:22Z | origin change | AS1014 → AS979 | 140357764532914979 |
| 2026-10-14 07:28:08Z | origin change | AS979 → AS1014 | 4608757529149791014 |
| 2026-10-14 07:28:07Z | origin change | AS1014 → AS979 | 1763974732914979 |
| 2026-10-14 07:28:04Z | origin change | AS979 → AS1014 | 45049669629149791014 |
| 2026-10-14 07:27:58Z | origin change | AS1014 → AS979 | 2040921989784284567622914979 |
| 2026-10-14 07:27:41Z | origin change | AS979 → AS1014 | 4913453356642429149791014 |
| 2026-10-14 07:27:41Z | origin change | AS979 → AS1014 | 4818529149791014 |
| 2026-10-14 07:27:40Z | origin change | AS1014 → AS979 | 1763934912914979 |
| 2026-10-14 07:27:40Z | origin change | AS1014 → AS979 | 5991990022914979 |
| 2026-10-14 07:27:40Z | origin change | AS979 → AS1014 | 34927900229149791014 |
| 2026-10-14 07:27:40Z | origin change | AS1014 → AS979 | 333311362914979 |
| 2026-10-14 07:27:40Z | origin change | AS1014 → AS979 | 443933571048200237642914979 |
| 2026-10-14 07:27:39Z | origin change | AS979 → AS1014 | 2064993454929149791014 |
| 2026-10-14 07:27:39Z | origin change | AS979 → AS1014 | 3454929149791014 |