216.145.218.0/24 RPKI valid MOAS
Announced by 5 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 |
|---|---|---|---|---|---|
| AS39588 Mimecast Services Limited | RPKI valid | 19 | 34549646139588 | 2026-09-18 | 2026-10-21 |
| AS30031 Mimecast North America Inc | RPKI valid | 11 | 3549335630031 | 2026-09-18 | 2026-10-21 |
| AS42427 Mimecast Services Limited | RPKI valid | 8 | 37721335642427 | 2026-09-18 | 2026-10-21 |
| AS33538 Mimecast North America Inc | RPKI valid | 3 | 22652174335633538 | 2026-10-11 | 2026-10-21 |
| AS136792 Mimecast Australia Pty Ltd | RPKI valid | 2 | 443936407315830136792 | 2026-09-18 | 2026-10-21 |
RPKI
7 ROAs cover this prefix
| ROA prefix | Max length | Authorised origin | Trust anchor | Result for this route |
|---|---|---|---|---|
| 216.145.218.0/24 | /24 | AS30031 | arin | wrong origin |
| 216.145.218.0/24 | /24 | AS33538 | arin | wrong origin |
| 216.145.218.0/24 | /24 | AS37235 | arin | wrong origin |
| 216.145.218.0/24 | /24 | AS39588 | arin | authorises it |
| 216.145.218.0/24 | /24 | AS42427 | arin | wrong origin |
| 216.145.218.0/24 | /24 | AS60492 | arin | wrong origin |
| 216.145.218.0/24 | /24 | AS136792 | arin | wrong origin |
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 216.145.208.0/20
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 2019-08-19
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 |
|---|---|---|---|
| 2026-10-20 21:51:24Z | origin change | AS39588 → AS42427 | 599199002646142427 |
| 2026-10-20 21:49:54Z | origin change | AS42427 → AS39588 | 5991912779646139588 |
| 2026-10-20 21:49:15Z | origin change | AS39588 → AS42427 | 599199002646142427 |
| 2026-10-20 21:13:24Z | origin change | AS30031 → AS39588 | 4504966962914335639588 |
| 2026-10-20 21:08:12Z | origin change | AS42427 → AS30031 | 7018646130031 |
| 2026-10-20 17:13:38Z | origin change | AS39588 → AS42427 | 328840327727174335642427 |
| 2026-10-20 11:57:07Z | origin change | AS42427 → AS39588 | 33331257646139588 |
| 2026-10-20 09:48:03Z | origin change | AS39588 → AS42427 | 33331136646142427 |
| 2026-10-20 08:44:54Z | origin change | AS30031 → AS39588 | 49432483621764646139588 |
| 2026-10-20 05:20:50Z | origin change | AS33538 → AS30031 | 7018335630031 |
| 2026-10-20 04:02:16Z | origin change | AS39588 → AS33538 | 7018335633538 |
| 2026-10-19 22:36:46Z | origin change | AS42427 → AS39588 | 49432483621764646139588 |
| 2026-10-19 22:03:07Z | origin change | AS39588 → AS42427 | 49432483629002646142427 |
| 2026-10-19 21:04:01Z | origin change | AS30031 → AS39588 | 49432483621764646139588 |
| 2026-10-19 11:39:37Z | origin change | AS42427 → AS30031 | 13830971335630031 |
| 2026-10-19 09:47:59Z | origin change | AS39588 → AS42427 | 37721335642427 |
| 2026-10-19 04:34:46Z | origin change | AS42427 → AS39588 | 17639335639588 |
| 2026-10-18 16:14:54Z | origin change | AS39588 → AS42427 | 328840327727174335642427 |
| 2026-10-18 15:14:54Z | origin change | AS42427 → AS39588 | 17639335639588 |
| 2026-10-18 14:30:11Z | origin change | AS39588 → AS42427 | 328840327727174335642427 |
| 2026-10-18 13:45:57Z | origin change | AS30031 → AS39588 | 17639335639588 |
| 2026-10-18 13:24:08Z | origin change | AS39588 → AS30031 | 557206939335630031 |
| 2026-10-18 12:35:11Z | origin change | AS42427 → AS39588 | 17639335639588 |
| 2026-10-17 07:23:33Z | origin change | AS39588 → AS42427 | 328840327727174335642427 |
| 2026-10-16 16:08:43Z | origin change | AS42427 → AS39588 | 20649934549646139588 |
| 2026-10-16 06:32:06Z | origin change | AS39588 → AS42427 | 328840327727174335642427 |
| 2026-10-16 02:03:03Z | origin change | AS42427 → AS39588 | 557206939646139588 |
| 2026-10-15 21:05:41Z | origin change | AS33538 → AS42427 | 328840327727174335642427 |
| 2026-10-15 21:05:37Z | origin change | AS30031 → AS33538 | 349271299335633538 |
| 2026-10-15 21:05:06Z | origin change | AS33538 → AS30031 | 1403577646130031 |
| 2026-10-15 21:04:06Z | origin change | AS39588 → AS33538 | 22652174335633538 |
| 2026-10-15 18:28:19Z | origin change | AS30031 → AS39588 | 557206939646139588 |
| 2026-10-15 17:56:40Z | origin change | AS39588 → AS30031 | 557206939335630031 |
| 2026-10-15 09:21:02Z | origin change | AS30031 → AS39588 | 21628582806762335639588 |
| 2026-10-15 08:04:14Z | origin change | AS136792 → AS30031 | 3549335630031 |
| 2026-10-15 08:02:23Z | origin change | AS30031 → AS136792 | 46082411515830136792 |
| 2026-10-15 07:07:13Z | origin change | AS42427 → AS30031 | 13830971335630031 |
| 2026-10-15 06:35:57Z | origin change | AS30031 → AS42427 | 328840327727174335642427 |
| 2026-10-15 06:17:02Z | origin change | AS39588 → AS30031 | 3549335630031 |
| 2026-10-15 06:16:49Z | origin change | AS30031 → AS39588 | 557202914335639588 |
| 2026-10-15 06:16:44Z | origin change | AS39588 → AS30031 | 14907335630031 |
| 2026-10-15 06:16:36Z | origin change | AS30031 → AS39588 | 132825335639588 |
| 2026-10-15 06:16:33Z | origin change | AS42427 → AS30031 | 13830971335630031 |
| 2026-10-15 00:10:00Z | origin change | AS39588 → AS42427 | 328840327727174335642427 |
| 2026-10-14 18:06:16Z | origin change | AS42427 → AS30031 | 557202914335630031 |
| 2026-10-14 18:04:07Z | origin change | AS30031 → AS39588 | 21628582806762335639588 |
| 2026-10-14 05:41:59Z | origin change | AS33538 → AS42427 | 328840327727174335642427 |
| 2026-10-14 05:04:55Z | origin change | AS30031 → AS33538 | 202056939335633538 |
| 2026-10-14 04:34:09Z | origin change | AS39588 → AS30031 | 202056939335630031 |
| 2026-10-14 03:32:42Z | origin change | AS42427 → AS39588 | 37989563001321324657646139588 |