| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 5C:0E:8B | MA-L | 16.8 million | 4 Nov 2014 | Extreme Networks, Inc. |
| B4:C7:99 | MA-L | 16.8 million | 4 Nov 2014 | Extreme Networks, Inc. |
| B8:50:01 | MA-L | 16.8 million | 16 Aug 2016 | Extreme Networks, Inc. |
| FC:0A:81 | MA-L | 16.8 million | 4 Nov 2014 | Extreme Networks, Inc. |
Former Zebra Technologies Inc MAC address blocks
The IEEE registry once carried 4 blocks registered to Zebra Technologies Inc. All 4 blocks are now registered to Extreme Networks, Inc.. Extreme Networks, Inc. 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.