The IEEE registry carries 3 blocks registered to Active Brains, together 17.8 million addresses, first observed 28 Aug 2016, most recently 31 May 2023.
Registered in JP.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| D8:09:4E | MA-L | 16.8 million | JP | 31 May 2023 |
| 64:31:39:4 | MA-M | 1 million | JP | 26 Sep 2019 |
| 70:B3:D5:2B:A | MA-S | 4.1 thousand | JP | 28 Aug 2016 |
Every block registered to Active Brains 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.