151.186.174.0/24 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 | 42 | 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 |
|---|---|---|---|---|
| 151.186.174.0/24 | /24 | AS14618 | ripe | wrong origin |
| 151.186.174.0/24 | /24 | AS16509 | ripe | wrong origin |
| 151.186.174.0/24 | /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 22:48:02Z | origin change | AS16509 → AS36692 | 2162858280676229141650936692 |
| 2026-11-05 22:48:00Z | origin change | AS36692 → AS16509 | 481853356291416509 |
| 2026-11-05 22:47:52Z | origin change | AS16509 → AS36692 | 460875751650936692 |
| 2026-11-05 22:47:50Z | origin change | AS36692 → AS16509 | 3549335616509 |
| 2026-11-05 22:47:22Z | origin change | AS16509 → AS36692 | 5572029141650936692 |
| 2026-11-05 22:47:21Z | origin change | AS36692 → AS16509 | 46081221463716509 |
| 2026-11-05 22:47:19Z | origin change | AS16509 → AS36692 | 354933561650936692 |
| 2026-11-05 22:47:14Z | origin change | AS36692 → AS16509 | 481853356291416509 |
| 2026-11-05 22:47:12Z | origin change | AS16509 → AS36692 | 14907335629141650936692 |
| 2026-11-05 22:47:10Z | origin change | AS36692 → AS16509 | 481853356291416509 |
| 2026-11-05 22:47:09Z | origin change | AS36692 → AS16509 | 496733216129916509 |
| 2026-11-05 22:47:09Z | origin change | AS16509 → AS36692 | 496732048512991650936692 |
| 2026-11-05 22:47:06Z | origin change | AS16509 → AS36692 | 5030412991650936692 |
| 2026-11-05 22:47:04Z | origin change | AS36692 → AS16509 | 37721332016509 |
| 2026-11-05 22:47:03Z | origin change | AS16509 → AS36692 | 494324836290021650936692 |
| 2026-11-05 22:47:00Z | origin change | AS16509 → AS36692 | 5572029141650936692 |
| 2026-11-05 22:47:00Z | origin change | AS36692 → AS16509 | 5805717416509 |
| 2026-11-05 22:46:59Z | origin change | AS36692 → AS16509 | 21628582806762291416509 |
| 2026-11-05 22:46:58Z | origin change | AS36692 → AS16509 | 13830971335616509 |
| 2026-11-05 22:46:58Z | origin change | AS16509 → AS36692 | 2064993454912991650936692 |
| 2026-11-05 22:46:58Z | origin change | AS16509 → AS36692 | 580573454912991650936692 |
| 2026-11-05 22:46:56Z | origin change | AS36692 → AS16509 | 13830971335616509 |
| 2026-11-05 22:46:53Z | origin change | AS16509 → AS36692 | 29504393921741650936692 |
| 2026-11-05 22:46:52Z | origin change | AS36692 → AS16509 | 55720291416509 |
| 2026-11-05 22:46:51Z | origin change | AS16509 → AS36692 | 460875751650936692 |
| 2026-11-05 22:46:50Z | origin change | AS36692 → AS16509 | 32884032772717416509 |
| 2026-11-05 22:46:49Z | origin change | AS16509 → AS36692 | 14035771650936692 |
| 2026-11-05 22:46:48Z | origin change | AS16509 → AS36692 | 202051741650936692 |
| 2026-11-05 22:46:48Z | origin change | AS36692 → AS16509 | 3549335616509 |
| 2026-11-05 22:46:44Z | origin change | AS36692 → AS16509 | 14907335616509 |
| 2026-11-05 22:46:41Z | origin change | AS16509 → AS36692 | 2051412991650936692 |
| 2026-11-05 22:46:32Z | origin change | AS16509 → AS36692 | 5991990021650936692 |
| 2026-11-05 22:46:32Z | origin change | AS36692 → AS16509 | 37989563001321324657645316509 |
| 2026-11-05 22:46:31Z | origin change | AS16509 → AS36692 | 70181650936692 |
| 2026-11-05 22:46:31Z | origin change | AS16509 → AS36692 | 8521650936692 |
| 2026-11-05 22:46:31Z | origin change | AS36692 → AS16509 | 37721645316509 |
| 2026-11-05 22:46:30Z | origin change | AS36692 → AS16509 | 55720291416509 |
| 2026-11-05 22:46:30Z | origin change | AS16509 → AS36692 | 226521650936692 |
| 2026-11-05 22:46:30Z | origin change | AS36692 → AS16509 | 140357716509 |
| 2026-11-05 22:46:29Z | origin change | AS16509 → AS36692 | 612186939165091650936692 |
| 2026-11-05 22:46:29Z | origin change | AS16509 → AS36692 | 443933942561650936692 |
| 2026-11-05 22:46:29Z | origin change | AS36692 → AS16509 | 599199002325716509 |
| 2026-11-05 22:46:29Z | origin change | AS36692 → AS16509 | 4943248362129916509 |
| 2026-11-05 22:46:29Z | origin change | AS36692 → AS16509 | 701816509 |
| 2026-11-05 22:46:29Z | origin change | AS16509 → AS36692 | 244821650936692 |
| 2026-11-05 22:46:07Z | origin change | AS36692 → AS16509 | 4439339425616509 |
| 2026-11-05 22:44:53Z | origin change | AS16509 → AS36692 | 3288403277271741650936692 |
| 2026-11-05 22:44:47Z | origin change | AS36692 → AS16509 | 3549335616509 |
| 2026-11-05 22:44:38Z | origin change | AS16509 → AS36692 | 4818512991650936692 |
| 2026-11-05 22:44:36Z | origin change | AS36692 → AS16509 | 48185335617416509 |