38.135.184.0/22 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 | 26 | 58057174 | 2026-10-21 | 2026-10-28 |
| AS20200 Hongshin, Inc. | no ROA | 15 | 5030412996006820200 | 2026-09-18 | 2026-10-28 |
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 | 41 | 34549174 | 2026-09-18 |
More specific routes
5 announced prefixes inside this one
| Prefix | Origin | RPKI | Peers | First seen |
|---|---|---|---|---|
| 38.135.184.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 39 | 2026-10-21 |
| 38.135.185.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 39 | 2026-10-21 |
| 38.135.186.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 13 | 2026-10-21 |
| 38.135.186.0/24 v4 | AS20200 Hongshin, Inc. | no ROA | 28 | 2026-09-18 |
| 38.135.187.0/24 v4 | AS174 Cogent Communications, LLC | no ROA | 39 | 2026-10-21 |
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-28 17:35:53Z | origin change | AS20200 → AS174 | 49673204856762174 |
| 2026-10-28 17:35:48Z | origin change | AS174 → AS20200 | 443933942561746006820200 |
| 2026-10-28 17:35:45Z | origin change | AS20200 → AS174 | 149073356174 |
| 2026-10-28 17:35:44Z | origin change | AS174 → AS20200 | 3288403277271746006820200 |
| 2026-10-28 17:35:39Z | origin change | AS20200 → AS174 | 176393356174 |
| 2026-10-28 17:35:38Z | origin change | AS174 → AS20200 | 202365506731746006820200 |
| 2026-10-28 17:35:16Z | origin change | AS20200 → AS174 | 149073356174 |
| 2026-10-28 17:35:13Z | origin change | AS174 → AS20200 | 4913453356642412996006820200 |
| 2026-10-28 17:35:01Z | origin change | AS174 → AS20200 | 2040921989781746006820200 |
| 2026-10-28 17:34:59Z | origin change | AS20200 → AS174 | 481853356174 |
| 2026-10-28 17:34:58Z | origin change | AS174 → AS20200 | 55720291464536006820200 |
| 2026-10-28 17:34:57Z | origin change | AS20200 → AS174 | 5805718363356174 |
| 2026-10-28 17:34:53Z | origin change | AS20200 → AS174 | 49673204856762174 |
| 2026-10-28 17:34:53Z | origin change | AS174 → AS20200 | 2162858280676212996006820200 |
| 2026-10-28 17:34:50Z | origin change | AS20200 → AS174 | 21628582806762174 |
| 2026-10-28 17:34:48Z | origin change | AS174 → AS20200 | 701812996006820200 |
| 2026-10-28 17:34:45Z | origin change | AS20200 → AS174 | 149073356174 |
| 2026-10-28 17:34:44Z | origin change | AS174 → AS20200 | 2265212996006820200 |
| 2026-10-28 17:34:40Z | origin change | AS20200 → AS174 | 204092340193303174 |
| 2026-10-28 17:34:40Z | origin change | AS174 → AS20200 | 2040921989781746006820200 |
| 2026-10-28 17:34:31Z | origin change | AS20200 → AS174 | 2448229142914174 |
| 2026-10-28 17:34:27Z | origin change | AS20200 → AS174 | 138309713356174 |
| 2026-10-28 17:34:27Z | origin change | AS174 → AS20200 | 377211746006820200 |
| 2026-10-28 17:34:24Z | origin change | AS174 → AS20200 | 3492712996006820200 |
| 2026-10-27 21:57:23Z | origin change | AS20200 → AS174 | 460875752914174 |
| 2026-10-27 17:52:05Z | origin change | AS174 → AS20200 | 58057345495511792279226006820200 |
| 2026-10-27 14:10:26Z | origin change | AS20200 → AS174 | 460875752914174 |
| 2026-10-27 11:41:48Z | origin change | AS174 → AS20200 | 140357779226006820200 |
| 2026-10-27 11:41:40Z | origin change | AS20200 → AS174 | 1403577174 |
| 2026-10-27 11:41:24Z | origin change | AS20200 → AS174 | 1403577174 |
| 2026-10-27 11:41:23Z | origin change | AS174 → AS20200 | 85279226006820200 |
| 2026-10-27 11:29:48Z | origin change | AS20200 → AS174 | 206499345492914174 |
| 2026-10-27 11:29:48Z | origin change | AS174 → AS20200 | 61218693964536006820200 |
| 2026-10-27 11:29:45Z | origin change | AS174 → AS20200 | 206499345495511792279226006820200 |
| 2026-10-26 02:40:19Z | origin change | AS20200 → AS174 | 328840327727174 |
| 2026-10-25 12:30:28Z | origin change | AS174 → AS20200 | 578211258632576006820200 |
| 2026-10-25 05:21:32Z | origin change | AS20200 → AS174 | 328840327727174 |
| 2026-10-24 17:20:46Z | origin change | AS174 → AS20200 | 85279226006820200 |
| 2026-10-23 20:06:28Z | origin change | AS20200 → AS174 | 2448229142914174 |
| 2026-10-23 09:22:02Z | origin change | AS174 → AS20200 | 578211258632576006820200 |
| 2026-10-22 22:59:26Z | origin change | AS20200 → AS174 | 49432483621764174 |
| 2026-10-22 22:09:32Z | origin change | AS174 → AS20200 | 573814270812996006820200 |
| 2026-10-22 21:53:59Z | origin change | AS20200 → AS174 | 4943221551031543174 |
| 2026-10-22 16:22:09Z | origin change | AS174 → AS20200 | 140357779226006820200 |
| 2026-10-22 13:30:34Z | origin change | AS20200 → AS174 | 2448229142914174 |
| 2026-10-22 13:30:34Z | origin change | AS174 → AS20200 | 2448264536006820200 |
| 2026-10-22 13:29:21Z | origin change | AS20200 → AS174 | 2448229142914174 |
| 2026-10-22 13:29:20Z | origin change | AS174 → AS20200 | 2448264536006820200 |
| 2026-10-22 13:27:02Z | origin change | AS20200 → AS174 | 2448229142914174 |
| 2026-10-22 13:27:01Z | origin change | AS174 → AS20200 | 2448264536006820200 |