| Prefix | Block | Addresses | First registered | Organization |
|---|---|---|---|---|
| 00:50:C2:88:6 | IAB | 4.1 thousand | 30 Jul 2008 | Wartsila Voyage Oy |
| 00:50:C2:DD:6 | IAB | 4.1 thousand | 27 Feb 2011 | Wartsila Voyage Oy |
| 70:B3:D5:30:4 | MA-S | 4.1 thousand | 5 Nov 2017 | Wartsila Voyage Oy |
| 70:B3:D5:9D:4 | MA-S | 4.1 thousand | 27 Sep 2015 | Wartsila Voyage Oy |
| 70:B3:D5:A0:5 | MA-S | 4.1 thousand | 18 Dec 2016 | Wartsila Voyage Oy |
| 70:B3:D5:AE:2 | MA-S | 4.1 thousand | 8 Jun 2014 | Wartsila Voyage Oy |
| 70:B3:D5:ED:8 | MA-S | 4.1 thousand | 20 Nov 2018 | Wartsila Voyage Oy |
Former Transas Marine Limited MAC address blocks
The IEEE registry once carried 7 blocks registered to Transas Marine Limited. All 7 blocks are now registered to Wartsila Voyage Oy. Wartsila Voyage Oy 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.