| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 00:50:C2:E6:0 | IAB | 4.1 thousand | 7 Aug 2011 | HORIZON.INC |
| 70:B3:D5:69:B | MA-S | 4.1 thousand | 1 Jul 2019 | HORIZON.INC |
Former TAIYO SEIKI CO.,LTD. MAC address blocks
The IEEE registry once carried 2 blocks registered to TAIYO SEIKI CO.,LTD.. All 2 blocks are now registered to HORIZON.INC. HORIZON.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.