| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 00:03:89 | MA-L | 16.8 million | 9 Nov 2000 | PLANTRONICS, INC. |
| 00:23:7F | MA-L | 16.8 million | 8 Oct 2008 | PLANTRONICS, INC. |
Former PLANTRONICS MAC address blocks
The IEEE registry once carried 2 blocks registered to PLANTRONICS. All 2 blocks are now registered to PLANTRONICS, INC.. PLANTRONICS, 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.