The IEEE registry carries 3 blocks registered to Monarch Instrument, together 12.3 thousand addresses, first observed 30 Jul 2008, most recently 30 Oct 2021.
Registered in US.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:69:7 | IAB | 4.1 thousand | US | 30 Jul 2008 |
| 40:D8:55:00:5 | IAB | 4.1 thousand | US | 23 Sep 2012 |
| 8C:1F:64:D4:4 | MA-S | 4.1 thousand | US | 30 Oct 2021 |
Every block registered to Monarch Instrument in the IEEE registries, complete. Free-text search also matches former owners.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.