151.186.175.0/24 RPKI valid 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 |
|---|---|---|---|---|---|
| AS36692 Cisco OpenDNS, LLC | RPKI valid | 41 | 226521650936692 | 2026-11-06 | 2026-11-07 |
| AS16509 Amazon.com, Inc. | RPKI valid | 1 | 3333332016509 | 2026-09-18 | 2026-11-07 |
RPKI
6 ROAs cover this prefix
| ROA prefix | Max length | Authorised origin | Trust anchor | Result for this route |
|---|---|---|---|---|
| 151.186.175.0/24 | /24 | AS14618 | ripe | wrong origin |
| 151.186.175.0/24 | /24 | AS16509 | ripe | wrong origin |
| 151.186.175.0/24 | /24 | AS36692 | ripe | authorises it |
| 151.186.172.0/22 | /24 | AS14618 | ripe | wrong origin |
| 151.186.172.0/22 | /24 | AS16509 | ripe | wrong origin |
| 151.186.172.0/22 | /24 | AS36692 | ripe | authorises it |
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 151.186.0.0/16
- RIR
- RIPENCC
- Country
- 🇺🇸 US
- Status
- assigned
- Allocated
- 1991-09-17
Less specific routes
Announced prefixes that contain this one
Nothing less specific is announced.
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-11-05 18:28:27Z | origin change | AS36692 → AS16509 | 3549335616509 |
| 2026-11-05 18:28:27Z | origin change | AS16509 → AS36692 | 4818512991650936692 |
| 2026-11-05 18:28:25Z | origin change | AS16509 → AS36692 | 1328251741650936692 |
| 2026-11-05 18:28:13Z | origin change | AS36692 → AS16509 | 48185335617416509 |
| 2026-11-05 18:28:11Z | origin change | AS36692 → AS16509 | 481853356291416509 |
| 2026-11-05 18:28:11Z | origin change | AS16509 → AS36692 | 38001747364611650936692 |
| 2026-11-05 18:28:08Z | origin change | AS16509 → AS36692 | 496732048512991650936692 |
| 2026-11-05 18:28:08Z | origin change | AS36692 → AS16509 | 496733216645316509 |
| 2026-11-05 18:27:59Z | origin change | AS16509 → AS36692 | 1490733561650936692 |
| 2026-11-05 18:27:56Z | origin change | AS36692 → AS16509 | 3549335616509 |
| 2026-11-05 18:27:52Z | origin change | AS16509 → AS36692 | 580571741650936692 |
| 2026-11-05 18:27:48Z | origin change | AS36692 → AS16509 | 37721335616509 |
| 2026-11-05 18:27:47Z | origin change | AS16509 → AS36692 | 573814270812991650936692 |
| 2026-11-05 18:27:44Z | origin change | AS36692 → AS16509 | 48185335617416509 |
| 2026-11-05 18:27:44Z | origin change | AS16509 → AS36692 | 202365506731741650936692 |
| 2026-11-05 18:27:44Z | origin change | AS36692 → AS16509 | 13830971335616509 |
| 2026-11-05 18:27:43Z | origin change | AS36692 → AS16509 | 13830971335616509 |
| 2026-11-05 18:27:43Z | origin change | AS16509 → AS36692 | 3454929141650936692 |
| 2026-11-05 18:27:43Z | origin change | AS16509 → AS36692 | 2064993454929141650936692 |
| 2026-11-05 18:27:42Z | origin change | AS36692 → AS16509 | 4967320485645316509 |
| 2026-11-05 18:27:40Z | origin change | AS36692 → AS16509 | 46081221463716509 |
| 2026-11-05 18:27:40Z | origin change | AS16509 → AS36692 | 2051412991650936692 |
| 2026-11-05 18:27:38Z | origin change | AS36692 → AS16509 | 37721646116509 |
| 2026-11-05 18:27:37Z | origin change | AS16509 → AS36692 | 14035771650936692 |
| 2026-11-05 18:27:35Z | origin change | AS16509 → AS36692 | 349275665512991650936692 |
| 2026-11-05 18:27:32Z | origin change | AS36692 → AS16509 | 2950439392129916509 |
| 2026-11-05 18:27:30Z | origin change | AS16509 → AS36692 | 202051741650936692 |
| 2026-11-05 18:27:28Z | origin change | AS16509 → AS36692 | 176391650936692 |
| 2026-11-05 18:27:28Z | origin change | AS36692 → AS16509 | 5805734549291416509 |
| 2026-11-05 18:27:22Z | origin change | AS36692 → AS16509 | 13830971335616509 |
| 2026-11-05 18:27:18Z | origin change | AS16509 → AS36692 | 5991990021650936692 |
| 2026-11-05 18:27:16Z | origin change | AS16509 → AS36692 | 70181650936692 |
| 2026-11-05 18:27:16Z | origin change | AS16509 → AS36692 | 578211258632571650936692 |
| 2026-11-05 18:27:16Z | origin change | AS36692 → AS16509 | 2020517416509 |
| 2026-11-05 18:27:16Z | origin change | AS36692 → AS16509 | 140357716509 |
| 2026-11-05 18:27:15Z | origin change | AS36692 → AS16509 | 57821125863257129916509 |
| 2026-11-05 18:27:15Z | origin change | AS16509 → AS36692 | 244821650936692 |
| 2026-11-05 18:27:15Z | origin change | AS36692 → AS16509 | 701816509 |
| 2026-11-05 18:27:15Z | origin change | AS36692 → AS16509 | 2448216509 |
| 2026-11-05 18:27:15Z | origin change | AS16509 → AS36692 | 61292244821650936692 |
| 2026-11-05 18:27:14Z | origin change | AS16509 → AS36692 | 443933942561650936692 |