38.236.128.0/19 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 |
|---|---|---|---|---|---|
| AS52772 SJNET TELECOMUNICACOES - EIRELI | no ROA | 23 | 2448252772 | 2026-09-18 | 2026-10-23 |
| AS174 Cogent Communications, LLC | no ROA | 20 | 58057174 | 2026-09-18 | 2026-10-23 |
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
- 38.0.0.0/8
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1991-04-16
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 38.0.0.0/8 v4 | AS174 Cogent Communications, LLC | no ROA | 42 | 34549174 | 2026-09-18 |
More specific routes
38 announced prefixes inside this one
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-23 06:30:37Z | origin change | AS52772 → AS174 | 2950439392174 |
| 2026-10-22 17:41:02Z | origin change | AS174 → AS52772 | 354933567195527725277252772 |
| 2026-10-22 17:40:47Z | origin change | AS52772 → AS174 | 21628582806762174 |
| 2026-10-22 17:39:45Z | origin change | AS174 → AS52772 | 216285828067622235622356137865277252772 |
| 2026-10-22 17:39:44Z | origin change | AS52772 → AS174 | 21628582806762174 |
| 2026-10-22 17:32:35Z | origin change | AS174 → AS52772 | 37721137865277252772 |
| 2026-10-22 10:46:27Z | origin change | AS52772 → AS174 | 149072914174 |
| 2026-10-22 04:27:59Z | origin change | AS52772 → AS174 | 21628582806762174 |
| 2026-10-22 04:27:58Z | origin change | AS174 → AS52772 | 5991990026762137865277252772 |
| 2026-10-22 04:27:57Z | origin change | AS52772 → AS174 | 21628582806762174 |
| 2026-10-22 04:27:56Z | origin change | AS174 → AS52772 | 5991990023257137865277252772 |
| 2026-10-22 04:19:14Z | origin change | AS174 → AS52772 | 20205693952772 |
| 2026-10-22 04:02:59Z | origin change | AS52772 → AS174 | 557202914174 |
| 2026-10-22 04:02:47Z | origin change | AS174 → AS52772 | 612186939137865277252772 |
| 2026-10-22 04:02:46Z | origin change | AS52772 → AS174 | 491345335664246461174 |
| 2026-10-22 04:01:58Z | origin change | AS174 → AS52772 | 55720693952772 |
| 2026-10-22 03:19:21Z | origin change | AS52772 → AS174 | 17639174 |
| 2026-10-21 21:53:00Z | origin change | AS174 → AS52772 | 2950439392338917195527725277252772 |
| 2026-10-21 21:02:41Z | origin change | AS52772 → AS174 | 4967312389174 |
| 2026-10-21 16:00:59Z | origin change | AS174 → AS52772 | 24482137865277252772 |
| 2026-10-21 12:18:40Z | origin change | AS52772 → AS174 | 17639174 |
| 2026-10-21 03:45:26Z | origin change | AS174 → AS52772 | 45049669612997195527725277252772 |
| 2026-10-21 03:45:12Z | origin change | AS52772 → AS174 | 21628582806762174 |
| 2026-10-20 21:11:35Z | origin change | AS174 → AS52772 | 14035773356137865277252772 |
| 2026-10-20 19:36:53Z | origin change | AS52772 → AS174 | 328840327727174 |
| 2026-10-20 18:11:43Z | origin change | AS174 → AS52772 | 57381503047195527725277252772 |
| 2026-10-20 18:11:34Z | origin change | AS52772 → AS174 | 506286453174 |
| 2026-10-20 18:11:24Z | origin change | AS174 → AS52772 | 503047195527725277252772 |
| 2026-10-20 18:11:16Z | origin change | AS52772 → AS174 | 2051484341299174 |
| 2026-10-20 18:11:15Z | origin change | AS174 → AS52772 | 206499345497195527725277252772 |
| 2026-10-20 18:11:15Z | origin change | AS52772 → AS174 | 149072914174 |
| 2026-10-20 18:11:15Z | origin change | AS174 → AS52772 | 345497195527725277252772 |
| 2026-10-20 18:11:14Z | origin change | AS174 → AS52772 | 481857195527725277252772 |
| 2026-10-20 18:11:14Z | origin change | AS52772 → AS174 | 4943221551031543174 |
| 2026-10-20 18:10:19Z | origin change | AS52772 → AS174 | 481851299174 |
| 2026-10-20 18:10:12Z | origin change | AS174 → AS52772 | 573814270812997195527725277252772 |
| 2026-10-20 18:10:10Z | origin change | AS52772 → AS174 | 37989563001321324657174 |
| 2026-10-20 18:10:09Z | origin change | AS174 → AS52772 | 481853356137865277252772 |
| 2026-10-20 18:10:08Z | origin change | AS52772 → AS174 | 49432483621764174 |
| 2026-10-20 18:10:07Z | origin change | AS174 → AS52772 | 481857195527725277252772 |
| 2026-10-20 17:13:33Z | origin change | AS52772 → AS174 | 328840327727174 |
| 2026-10-20 11:06:46Z | origin change | AS174 → AS52772 | 379895630013213246577195527725277252772 |
| 2026-10-20 08:44:53Z | origin change | AS52772 → AS174 | 4943221551031543174 |
| 2026-10-20 00:05:25Z | origin change | AS174 → AS52772 | 21628582806762137865277252772 |
| 2026-10-19 21:04:01Z | origin change | AS52772 → AS174 | 4943221551031543174 |
| 2026-10-19 20:55:18Z | origin change | AS174 → AS52772 | 49432483627195527725277252772 |
| 2026-10-19 11:39:27Z | origin change | AS52772 → AS174 | 13830971174 |
| 2026-10-19 09:42:26Z | origin change | AS174 → AS52772 | 37721137865277252772 |
| 2026-10-19 02:18:01Z | origin change | AS52772 → AS174 | 328840327727174 |
| 2026-10-18 20:39:57Z | origin change | AS174 → AS52772 | 35493356137865277252772 |