| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 0C:73:EB:5 | MA-M | 1 million | PL | 21 Jan 2018 |
| 00:50:C2:F4:5 | IAB | 4.1 thousand | PL | 26 Feb 2012 |
| 70:B3:D5:08:6 | MA-S | 4.1 thousand | PL | 16 Jul 2017 |
| 70:B3:D5:19:4 | MA-S | 4.1 thousand | PL | 21 Feb 2016 |
| 70:B3:D5:54:C | MA-S | 4.1 thousand | PL | 25 Sep 2016 |
| 70:B3:D5:77:C | MA-S | 4.1 thousand | PL | 10 Aug 2014 |
| 70:B3:D5:B2:8 | MA-S | 4.1 thousand | PL | 16 Aug 2015 |
Every block registered to Husty M.Styczen J.Hupert Sp.J. in the IEEE registries, complete. Free-text search also matches former owners.