| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:6B:1 | IAB | 4.1 thousand | US | 30 Jul 2008 |
| 00:50:C2:FF:4 | IAB | 4.1 thousand | US | 2 Sep 2012 |
| 70:B3:D5:64:1 | MA-S | 4.1 thousand | US | 16 Jan 2020 |
| 70:B3:D5:98:5 | MA-S | 4.1 thousand | US | 25 Mar 2018 |
| 70:B3:D5:BD:2 | MA-S | 4.1 thousand | US | 1 May 2016 |
| 8C:1F:64:1F:E | MA-S | 4.1 thousand | US | 27 Sep 2022 |
Every block registered to Burk Technology in the IEEE registries, complete. Free-text search also matches former owners.