| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 10:7B:EF | MA-L | 16.8 million | 26 Jul 2013 | Zyxel Communications Corporation |
| 4C:9E:FF | MA-L | 16.8 million | 19 Apr 2014 | Zyxel Communications Corporation |
| 5C:F4:AB | MA-L | 16.8 million | 31 Jan 2014 | Zyxel Communications Corporation |
| C8:6C:87 | MA-L | 16.8 million | 26 May 2011 | Zyxel Communications Corporation |
Former ZyXEL Communications Corp MAC address blocks
The IEEE registry once carried 4 blocks registered to ZyXEL Communications Corp. All 4 blocks are now registered to Zyxel Communications Corporation. Zyxel Communications Corporation took over all of them.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.