208.21.64.0/18 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 |
|---|---|---|---|---|---|
| AS11404 Astound (fka. Wave Broadband) | no ROA | 22 | 2448211404 | 2026-09-18 | 2026-10-10 |
| AS22773 Cox Communications Inc. | no ROA | 21 | 34549129922773 | 2026-09-30 | 2026-10-10 |
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
- 208.0.0.0/11
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1996-03-13
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 208.0.0.0/11 v4 | AS174 Cogent Communications, LLC | no ROA | 42 | 34549174 | 2026-09-18 |
More specific routes
3 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 208.21.64.0/19 v4 | AS3491 PCCW Global (HK) Ltd. | no ROA | 43 | 2026-09-18 |
| 208.21.64.0/24 v4 | AS22773 Cox Communications Inc. | no ROA | 43 | 2026-09-29 |
| 208.21.96.0/19 v4 | AS3491 PCCW Global (HK) Ltd. | no ROA | 43 | 2026-09-18 |
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-10 10:12:40Z | origin change | AS22773 → AS11404 | 17639335611404 |
| 2026-10-10 10:03:52Z | origin change | AS11404 → AS22773 | 37721693922773 |
| 2026-10-10 00:31:29Z | origin change | AS22773 → AS11404 | 17639335611404 |
| 2026-10-09 21:07:41Z | origin change | AS11404 → AS22773 | 37721646122773 |
| 2026-10-08 23:10:44Z | origin change | AS22773 → AS11404 | 48185335611404 |
| 2026-10-08 22:51:07Z | origin change | AS11404 → AS22773 | 48185129922773 |
| 2026-10-08 22:34:13Z | origin change | AS22773 → AS11404 | 132825335611404 |
| 2026-10-08 17:55:15Z | origin change | AS11404 → AS22773 | 61218693922773 |
| 2026-10-08 12:00:34Z | origin change | AS22773 → AS11404 | 4608757511404 |
| 2026-10-08 11:59:39Z | origin change | AS11404 → AS22773 | 2950439392129922773 |
| 2026-10-08 11:45:31Z | origin change | AS22773 → AS11404 | 3549335611404 |
| 2026-10-08 11:35:47Z | origin change | AS11404 → AS22773 | 37721693922773 |
| 2026-10-08 11:03:13Z | origin change | AS22773 → AS11404 | 3549335611404 |
| 2026-10-07 17:57:51Z | origin change | AS11404 → AS22773 | 20205693922773 |
| 2026-10-07 17:57:30Z | origin change | AS22773 → AS11404 | 55720693911404 |
| 2026-10-07 17:55:13Z | origin change | AS11404 → AS22773 | 4913453356693922773 |
| 2026-10-07 16:46:15Z | origin change | AS22773 → AS11404 | 14907335611404 |
| 2026-10-07 16:44:28Z | origin change | AS11404 → AS22773 | 37721693922773 |
| 2026-10-07 16:33:48Z | origin change | AS22773 → AS11404 | 14907335611404 |
| 2026-10-07 10:25:19Z | origin change | AS11404 → AS22773 | 2950415935174129922773 |
| 2026-10-06 13:26:30Z | origin change | AS22773 → AS11404 | 4967312389129911404 |
| 2026-10-06 08:46:10Z | origin change | AS11404 → AS22773 | 2950415935174129922773 |
| 2026-10-05 00:14:25Z | origin change | AS22773 → AS11404 | 328840327727174335611404 |
| 2026-10-04 09:55:26Z | origin change | AS11404 → AS22773 | 5805734549129922773 |
| 2026-10-04 08:01:09Z | origin change | AS22773 → AS11404 | 17639693911404 |
| 2026-10-03 19:19:15Z | origin change | AS11404 → AS22773 | 37721646122773 |
| 2026-10-03 17:58:07Z | origin change | AS22773 → AS11404 | 328840327727174335611404 |
| 2026-10-03 14:23:57Z | origin change | AS11404 → AS22773 | 2950415935174129922773 |
| 2026-10-03 14:23:27Z | origin change | AS22773 → AS11404 | 2950415935174129911404 |
| 2026-10-03 09:12:52Z | origin change | AS11404 → AS22773 | 37721693922773 |
| 2026-10-03 03:14:28Z | origin change | AS22773 → AS11404 | 328840327727174335611404 |
| 2026-10-03 01:31:43Z | origin change | AS11404 → AS22773 | 2950415935174129922773 |
| 2026-09-30 15:27:31Z | origin change | AS22773 → AS11404 | 328840327727174335611404 |
| 2026-09-30 15:04:47Z | origin change | AS11404 → AS22773 | 328840327727174129922773 |
| 2026-09-30 14:38:09Z | origin change | AS22773 → AS11404 | 132825174325711404 |
| 2026-09-30 13:50:04Z | origin change | AS11404 → AS22773 | 4913453356693922773 |
| 2026-09-30 13:49:27Z | origin change | AS22773 → AS11404 | 557202914335611404 |
| 2026-09-30 13:44:15Z | origin change | AS11404 → AS22773 | 37721693922773 |
| 2026-09-30 13:44:10Z | origin change | AS22773 → AS11404 | 3492756655129911404 |
| 2026-09-30 13:44:01Z | origin change | AS11404 → AS22773 | 20205693922773 |
| 2026-09-30 12:55:29Z | origin change | AS22773 → AS11404 | 852325711404 |
| 2026-09-30 12:12:20Z | origin change | AS11404 → AS22773 | 2950415935174129922773 |
| 2026-09-30 05:42:57Z | origin change | AS22773 → AS11404 | 852325711404 |
| 2026-09-30 03:49:26Z | origin change | AS11404 → AS22773 | 328840327727174129922773 |
| 2026-09-30 03:27:59Z | origin change | AS22773 → AS11404 | 852325711404 |
| 2026-09-30 03:05:08Z | origin change | AS11404 → AS22773 | 2950415935174129922773 |
| 2026-09-29 19:25:06Z | origin change | AS11404 → AS22773 | 2950415935174129922773 |
| 2026-09-29 19:25:03Z | origin change | AS22773 → AS11404 | 50304129911404 |
| 2026-09-29 19:24:59Z | origin change | AS11404 → AS22773 | 13830971174129922773 |
| 2026-09-29 19:24:54Z | origin change | AS22773 → AS11404 | 20514129911404 |