38.224.50.0/23 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 | 37 | 34549174 | 2026-09-18 | 2026-10-29 |
| AS215018 CORTEX SP COMPUTER, S.L. | no ROA | 4 | 4818560171210321215018 | 2026-09-18 | 2026-10-29 |
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
2 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 38.224.50.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 41 | 2026-09-18 |
| 38.224.51.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 41 | 2026-09-18 |
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-25 21:10:11Z | origin change | AS215018 → AS174 | 57821125863257174 |
| 2026-10-25 12:30:27Z | origin change | AS174 → AS215018 | 57821125863257210321215018 |
| 2026-10-24 14:02:03Z | origin change | AS215018 → AS174 | 58057174 |
| 2026-10-24 13:53:16Z | origin change | AS174 → AS215018 | 244824222960171210321215018 |
| 2026-10-24 13:09:21Z | origin change | AS215018 → AS174 | 17639174 |
| 2026-10-23 09:22:00Z | origin change | AS174 → AS215018 | 57821125863257210321215018 |
| 2026-10-22 03:19:21Z | origin change | AS215018 → AS174 | 17639174 |
| 2026-10-21 21:56:48Z | origin change | AS174 → AS215018 | 29504393923389160171210321215018 |
| 2026-10-21 17:22:37Z | origin change | AS215018 → AS174 | 491345335664246461174 |
| 2026-10-21 16:11:27Z | origin change | AS174 → AS215018 | 61218693960171210321215018 |
| 2026-10-20 14:43:44Z | origin change | AS215018 → AS174 | 460875752914174 |
| 2026-10-20 14:42:51Z | origin change | AS174 → AS215018 | 4608122146373257210321215018 |
| 2026-10-20 14:12:47Z | origin change | AS215018 → AS174 | 460875752914174 |
| 2026-10-20 14:09:52Z | origin change | AS174 → AS215018 | 4608122146373257210321215018 |
| 2026-10-19 09:48:07Z | origin change | AS215018 → AS174 | 37721174 |
| 2026-10-19 08:39:03Z | origin change | AS174 → AS215018 | 244824222960171210321215018 |