100.42.16.0/23 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 |
|---|---|---|---|---|---|
| AS33651 Comcast Cable Communications, LLC | RPKI valid | 28 | 7018792233651 | 2026-10-02 | 2026-10-09 |
| AS33667 Comcast Cable Communications, LLC | RPKI valid | 15 | 37721335633667 | 2026-10-02 | 2026-10-09 |
RPKI
3 ROAs cover this prefix
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 100.42.16.0/20
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 2011-11-17
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 100.42.16.0/20 v4 | AS46841 Fork Networking, LLC | RPKI valid | 47 | 693946841 | 2026-09-18 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.
Recorded changes
| When | Change | Origin | Path |
|---|---|---|---|
| 2026-10-09 13:20:21Z | origin change | AS33651 → AS33667 | 17639335633667 |
| 2026-10-09 00:16:39Z | origin change | AS33667 → AS33651 | 328840327727174792233651 |
| 2026-10-08 22:36:25Z | origin change | AS33651 → AS33667 | 3549335633667 |
| 2026-10-08 22:35:07Z | origin change | AS33667 → AS33651 | 460812214637792233651 |
| 2026-10-08 22:34:52Z | origin change | AS33651 → AS33667 | 132825335633667 |
| 2026-10-08 22:34:16Z | origin change | AS33667 → AS33651 | 226521299792233651 |
| 2026-10-08 22:33:57Z | origin change | AS33651 → AS33667 | 13830971335633667 |
| 2026-10-08 11:59:47Z | origin change | AS33667 → AS33651 | 460812214637792233651 |
| 2026-10-08 11:02:10Z | origin change | AS33651 → AS33667 | 3549335633667 |
| 2026-10-07 17:24:38Z | origin change | AS33667 → AS33651 | 57381427081299792233651 |
| 2026-10-07 16:41:55Z | origin change | AS33651 → AS33667 | 14907335633667 |
| 2026-10-07 16:19:16Z | origin change | AS33667 → AS33651 | 149071299792233651 |
| 2026-10-07 16:08:55Z | origin change | AS33651 → AS33667 | 379895630013213246579002335633667 |
| 2026-10-07 14:37:52Z | origin change | AS33667 → AS33651 | 149071299792233651 |
| 2026-10-07 13:59:40Z | origin change | AS33651 → AS33667 | 37721335633667 |
| 2026-10-06 19:10:36Z | origin change | AS33667 → AS33651 | 45049669655117922792233651 |
| 2026-10-06 04:10:56Z | origin change | AS33651 → AS33667 | 44393357104809335633667 |
| 2026-10-04 09:55:08Z | origin change | AS33667 → AS33651 | 5805734549174792233651 |
| 2026-10-03 23:24:12Z | origin change | AS33651 → AS33667 | 4967312389335633667 |
| 2026-10-03 17:58:09Z | origin change | AS33667 → AS33651 | 328840327727174792233651 |
| 2026-10-03 14:05:40Z | origin change | AS33651 → AS33667 | 37721335633667 |
| 2026-10-03 13:49:13Z | origin change | AS33667 → AS33651 | 49134533566939792233651 |
| 2026-10-03 09:13:14Z | origin change | AS33651 → AS33667 | 37721335633667 |
| 2026-10-03 01:31:43Z | origin change | AS33667 → AS33651 | 2950415935174792233651 |
| 2026-10-02 23:51:02Z | origin change | AS33651 → AS33667 | 4967312389335633667 |
| 2026-10-02 13:38:01Z | origin change | AS33667 → AS33651 | 328840327727174792233651 |
| 2026-10-02 13:13:01Z | origin change | AS33651 → AS33667 | 132825335633667 |
| 2026-10-02 13:13:01Z | origin change | AS33651 → AS33667 | 50628335633667 |
| 2026-10-02 13:12:59Z | origin change | AS33651 → AS33667 | 3549335633667 |
| 2026-10-02 13:12:53Z | origin change | AS33667 → AS33651 | 328840327727174792233651 |
| 2026-10-02 13:12:46Z | origin change | AS33667 → AS33651 | 557202914792233651 |
| 2026-10-02 13:12:46Z | origin change | AS33651 → AS33667 | 599199002335633667 |
| 2026-10-02 13:12:44Z | origin change | AS33667 → AS33651 | 20236550673174792233651 |
| 2026-10-02 13:12:43Z | origin change | AS33651 → AS33667 | 17639335633667 |
| 2026-10-02 13:12:36Z | origin change | AS33667 → AS33651 | 3492752025174792233651 |
| 2026-10-02 13:12:33Z | origin change | AS33651 → AS33667 | 3549335633667 |
| 2026-10-02 13:12:29Z | origin change | AS33651 → AS33667 | 49432483621764335633667 |
| 2026-10-02 13:12:28Z | origin change | AS33667 → AS33651 | 34549174792233651 |
| 2026-10-02 13:12:27Z | origin change | AS33651 → AS33667 | 37721335633667 |
| 2026-10-02 13:12:27Z | origin change | AS33651 → AS33667 | 496733216335633667 |
| 2026-10-02 13:12:26Z | origin change | AS33667 → AS33651 | 333312576453792233651 |
| 2026-10-02 13:12:24Z | origin change | AS33667 → AS33651 | 5572069391299792233651 |
| 2026-10-02 13:12:23Z | origin change | AS33651 → AS33667 | 4967320764335633667 |
| 2026-10-02 13:12:23Z | origin change | AS33667 → AS33651 | 2132419002335633651 |
| 2026-10-02 13:12:20Z | origin change | AS33651 → AS33667 | 48185335633667 |
| 2026-10-02 13:12:20Z | origin change | AS33667 → AS33651 | 333312572914792233651 |
| 2026-10-02 13:12:18Z | origin change | AS33667 → AS33651 | 5805718361299792233651 |
| 2026-10-02 13:12:17Z | new prefix | AS33651 Comcast Cable Communications, LLC | 6121869391299792233651 |