| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:41:4 | IAB | 4.1 thousand | ES | 30 Jul 2008 |
| 70:B3:D5:26:A | MA-S | 4.1 thousand | ES | 28 Sep 2019 |
| 70:B3:D5:53:2 | MA-S | 4.1 thousand | ES | 28 Jan 2018 |
| 70:B3:D5:C0:8 | MA-S | 4.1 thousand | ES | 5 Jan 2019 |
| 70:B3:D5:E8:3 | MA-S | 4.1 thousand | ES | 30 Apr 2020 |
| 8C:1F:64:97:F | MA-S | 4.1 thousand | ES | 11 Jan 2023 |
| 8C:1F:64:F6:5 | MA-S | 4.1 thousand | ES | 1 Apr 2022 |
Every block registered to Talleres de Escoriaza SA in the IEEE registries, complete. Free-text search also matches former owners.