| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 0C:4C:39 | MA-L | 16.8 million | 18 Jun 2011 | MitraStar Technology Corp. |
| C8:6C:87 | MA-L | 16.8 million | 30 Dec 2010 | Zyxel Communications Corporation |
Former Mitrastar Technology MAC address blocks
The IEEE registry once carried 2 blocks registered to Mitrastar Technology. They are now registered across 2 organizations: MitraStar Technology Corp. × 1, ZyXEL Communications Corporation × 1.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.