38.203.0.0/22 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 |
|---|---|---|---|---|---|
| AS174 Cogent Communications, LLC | no ROA | 24 | 58057174 | 2026-09-18 | 2026-10-09 |
| AS9009 M247 Europe SRL | no ROA | 17 | 345499009 | 2026-09-18 | 2026-10-09 |
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
4 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 38.203.0.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 41 | 2026-09-18 |
| 38.203.1.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 41 | 2026-09-18 |
| 38.203.2.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 41 | 2026-09-18 |
| 38.203.3.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 41 | 2026-09-18 |
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-09 13:20:51Z | origin change | AS174 → AS9009 | 176399009 |
| 2026-10-08 22:35:18Z | origin change | AS9009 → AS174 | 1403577174 |
| 2026-10-08 22:35:16Z | origin change | AS174 → AS9009 | 4608122146379009 |
| 2026-10-08 22:33:30Z | origin change | AS9009 → AS174 | 349271299174 |
| 2026-10-08 17:55:24Z | origin change | AS174 → AS9009 | 61218693955119009 |
| 2026-10-08 17:07:49Z | origin change | AS9009 → AS174 | 557202914174 |
| 2026-10-08 12:00:08Z | origin change | AS174 → AS9009 | 4608122146379009 |
| 2026-10-08 11:59:38Z | origin change | AS9009 → AS174 | 2950439392174 |
| 2026-10-08 11:57:48Z | origin change | AS174 → AS9009 | 481859009900990099009 |
| 2026-10-08 11:37:46Z | origin change | AS9009 → AS174 | 35493356174 |
| 2026-10-08 11:35:27Z | origin change | AS174 → AS9009 | 377219009 |
| 2026-10-07 17:44:11Z | origin change | AS9009 → AS174 | 557202914174 |
| 2026-10-07 16:44:18Z | origin change | AS174 → AS9009 | 377219009 |
| 2026-10-07 16:18:44Z | origin change | AS9009 → AS174 | 149071299174 |
| 2026-10-07 16:09:23Z | origin change | AS174 → AS9009 | 37989563001321329009 |
| 2026-10-07 14:35:17Z | origin change | AS9009 → AS174 | 149071299174 |
| 2026-10-07 13:58:59Z | origin change | AS174 → AS9009 | 377219009 |
| 2026-10-05 00:14:27Z | origin change | AS9009 → AS174 | 328840327727174 |
| 2026-10-04 06:18:47Z | origin change | AS174 → AS9009 | 34800345499009 |
| 2026-10-03 17:58:09Z | origin change | AS9009 → AS174 | 328840327727174 |
| 2026-10-03 09:13:01Z | origin change | AS174 → AS9009 | 377219009 |
| 2026-10-02 18:16:15Z | origin change | AS9009 → AS174 | 328840327727174 |
| 2026-10-02 15:22:30Z | origin change | AS174 → AS9009 | 59919127799009 |
| 2026-10-02 13:38:00Z | origin change | AS9009 → AS174 | 328840327727174 |
| 2026-10-02 08:34:43Z | origin change | AS174 → AS9009 | 176399009 |
| 2026-09-30 12:07:43Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-30 11:45:48Z | origin change | AS174 → AS9009 | 377219009 |
| 2026-09-29 14:45:38Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-29 13:43:34Z | origin change | AS174 → AS9009 | 377219009 |
| 2026-09-29 06:16:56Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-29 06:10:49Z | origin change | AS174 → AS9009 | 61218693955119009 |
| 2026-09-29 06:10:26Z | origin change | AS9009 → AS174 | 34927566551299174 |
| 2026-09-29 06:10:18Z | origin change | AS174 → AS9009 | 377219009 |
| 2026-09-29 06:10:16Z | origin change | AS9009 → AS174 | 202051299174 |
| 2026-09-29 06:10:16Z | origin change | AS174 → AS9009 | 496739009 |
| 2026-09-29 06:10:15Z | origin change | AS9009 → AS174 | 20236550673174 |
| 2026-09-29 06:05:55Z | origin change | AS174 → AS9009 | 202365506739009 |
| 2026-09-29 03:48:29Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-28 20:13:04Z | origin change | AS174 → AS9009 | 244829009 |
| 2026-09-28 12:31:09Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-28 12:04:54Z | origin change | AS174 → AS9009 | 496739009 |
| 2026-09-28 00:09:17Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-28 00:03:51Z | origin change | AS174 → AS9009 | 494324836217649009 |
| 2026-09-27 22:09:28Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-27 22:04:40Z | origin change | AS174 → AS9009 | 494324836217649009 |
| 2026-09-27 04:09:19Z | origin change | AS9009 → AS174 | 852174 |
| 2026-09-27 03:52:04Z | origin change | AS174 → AS9009 | 176399009 |
| 2026-09-26 02:34:57Z | origin change | AS9009 → AS174 | 328840327727174 |
| 2026-09-26 01:27:02Z | origin change | AS174 → AS9009 | 481859009900990099009 |