38.147.221.0/24 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 |
|---|---|---|---|---|---|
| AS174 Cogent Communications, LLC | no ROA | 28 | 37721174 | 2026-09-18 | 2026-10-12 |
| AS46887 Zayo (fka. Crown Castle) | no ROA | 13 | 34549646146887 | 2026-09-18 | 2026-10-12 |
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 | 43 | 34549174 | 2026-09-18 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-12 05:57:39Z | origin change | AS46887 → AS174 | 460875752914174 |
| 2026-10-10 19:42:24Z | origin change | AS46887 → AS174 | 328840327727174 |
| 2026-10-10 19:33:57Z | origin change | AS174 → AS46887 | 48185646146887 |
| 2026-10-08 22:35:23Z | origin change | AS46887 → AS174 | 460875751299174 |
| 2026-10-08 22:35:20Z | origin change | AS174 → AS46887 | 1403577646146887 |
| 2026-10-08 22:31:32Z | origin change | AS46887 → AS174 | 33333320174 |
| 2026-10-08 17:55:33Z | origin change | AS174 → AS46887 | 612186939646146887 |
| 2026-10-08 12:00:25Z | origin change | AS46887 → AS174 | 460875751299174 |
| 2026-10-08 11:57:47Z | origin change | AS174 → AS46887 | 48185646146887 |
| 2026-10-08 11:02:12Z | origin change | AS46887 → AS174 | 35493356174 |
| 2026-10-07 22:00:27Z | origin change | AS174 → AS46887 | 599199002646146887 |
| 2026-10-07 17:57:44Z | origin change | AS46887 → AS174 | 557202914174 |
| 2026-10-07 17:55:16Z | origin change | AS174 → AS46887 | 49134533566424646146887 |
| 2026-10-07 16:18:44Z | origin change | AS46887 → AS174 | 149071299174 |
| 2026-10-07 16:09:23Z | origin change | AS174 → AS46887 | 37989563001321324657646146887 |
| 2026-10-07 10:26:00Z | origin change | AS46887 → AS174 | 2950439392174 |
| 2026-10-07 10:25:18Z | origin change | AS174 → AS46887 | 2950415935646146887 |
| 2026-10-05 00:14:27Z | origin change | AS46887 → AS174 | 328840327727174 |
| 2026-10-04 09:55:08Z | origin change | AS174 → AS46887 | 5805734549646146887 |
| 2026-10-03 03:14:30Z | origin change | AS46887 → AS174 | 328840327727174 |
| 2026-10-03 01:31:44Z | origin change | AS174 → AS46887 | 2950415935646146887 |
| 2026-10-02 08:34:31Z | origin change | AS46887 → AS174 | 17639174 |
| 2026-10-02 01:21:55Z | origin change | AS46887 → AS174 | 491345335664241299174 |
| 2026-10-02 01:21:51Z | origin change | AS174 → AS46887 | 29504159356461468874688746887 |
| 2026-10-02 01:21:51Z | origin change | AS46887 → AS174 | 2950415935174 |
| 2026-10-02 01:21:45Z | origin change | AS174 → AS46887 | 852646146887 |
| 2026-10-02 01:21:45Z | origin change | AS174 → AS46887 | 481856461468874688746887 |
| 2026-10-02 01:21:44Z | origin change | AS174 → AS46887 | 244826461468874688746887 |
| 2026-10-02 01:21:43Z | origin change | AS174 → AS46887 | 599199002646146887 |
| 2026-10-02 01:21:43Z | origin change | AS46887 → AS174 | 3480034549174 |
| 2026-10-02 01:21:43Z | origin change | AS46887 → AS174 | 2950415935174 |
| 2026-10-01 18:45:04Z | origin change | AS46887 → AS174 | 328840327727174 |
| 2026-10-01 08:29:44Z | origin change | AS174 → AS46887 | 852646146887 |
| 2026-10-01 07:59:33Z | origin change | AS46887 → AS174 | 557202914174 |
| 2026-10-01 04:03:54Z | origin change | AS174 → AS46887 | 8526461468874688746887 |
| 2026-10-01 03:32:56Z | origin change | AS46887 → AS174 | 328840327727174 |
| 2026-10-01 03:19:47Z | origin change | AS174 → AS46887 | 6121869396461468874688746887 |
| 2026-10-01 03:19:41Z | origin change | AS46887 → AS174 | 21324190023356174 |
| 2026-10-01 03:19:32Z | origin change | AS174 → AS46887 | 24482646146887468874688746887 |
| 2026-10-01 03:19:31Z | origin change | AS46887 → AS174 | 2448229142914174 |
| 2026-10-01 03:19:31Z | origin change | AS174 → AS46887 | 244822914646146887 |
| 2026-10-01 03:19:31Z | origin change | AS46887 → AS174 | 244826453174 |
| 2026-10-01 03:19:29Z | origin change | AS174 → AS46887 | 481856461468874688746887 |
| 2026-10-01 03:19:25Z | origin change | AS174 → AS46887 | 599199002646146887 |
| 2026-10-01 03:19:25Z | origin change | AS46887 → AS174 | 244826453174 |
| 2026-10-01 03:19:25Z | origin change | AS174 → AS46887 | 24482646146887 |
| 2026-10-01 03:19:25Z | origin change | AS46887 → AS174 | 20649934549174 |
| 2026-10-01 03:19:24Z | origin change | AS46887 → AS174 | 2950439392174 |
| 2026-09-30 21:47:03Z | origin change | AS174 → AS46887 | 852646146887 |
| 2026-09-30 21:04:06Z | origin change | AS46887 → AS174 | 557202914174 |