163.253.81.0/24 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 |
|---|---|---|---|---|---|
| AS11164 Internet2 I2PX | RPKI valid | 15 | 1490711164 | 2026-09-18 | 2026-10-22 |
| AS11537 Internet2 | RPKI valid | 3 | 382292449011537 | 2026-09-18 | 2026-10-22 |
RPKI
3 ROAs cover this prefix
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 163.253.0.0/16
- RIR
- ARIN
- Country
- 🇺🇸 US
- Status
- allocated
- Allocated
- 1992-10-21
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 |
|---|---|---|---|
| 2026-10-21 12:23:33Z | origin change | AS11537 → AS11164 | 1763934911116411164111641116411164 |
| 2026-10-20 14:45:04Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-20 14:43:27Z | origin change | AS11537 → AS11164 | 4608122146371116411164111641116411164 |
| 2026-10-20 14:13:26Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-20 14:10:39Z | origin change | AS11537 → AS11164 | 4608122146371116411164111641116411164 |
| 2026-10-20 11:08:03Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-18 12:34:40Z | origin change | AS11537 → AS11164 | 1763934911116411164111641116411164 |
| 2026-10-16 15:29:00Z | origin change | AS11164 → AS11537 | 382292449024287766011537 |
| 2026-10-15 17:57:19Z | origin change | AS11537 → AS11164 | 5572069391116411164111641116411164 |
| 2026-10-14 11:17:53Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-14 03:32:34Z | origin change | AS11537 → AS11164 | 3798956300132132465746371116411164111641116411164 |
| 2026-10-14 00:43:00Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-12 18:36:32Z | origin change | AS11537 → AS11164 | 3772164611116411164111641116411164 |
| 2026-10-12 04:58:27Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-09 13:21:58Z | origin change | AS11537 → AS11164 | 1763934911116411164111641116411164 |
| 2026-10-09 09:00:01Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-08 22:36:26Z | origin change | AS11537 → AS11164 | 149071116411164111641116411164 |
| 2026-10-08 22:35:15Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-08 17:08:09Z | origin change | AS11537 → AS11164 | 5572069391116411164111641116411164 |
| 2026-10-08 12:00:06Z | origin change | AS11164 → AS11537 | 4608757511537 |
| 2026-10-08 11:37:09Z | origin change | AS11537 → AS11164 | 3772164611116411164111641116411164 |
| 2026-10-08 11:02:15Z | origin change | AS11164 → AS11537 | 4608757511537 |