| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:75:3 | IAB | 4.1 thousand | FI | 30 Jul 2008 |
| 70:B3:D5:08:0 | MA-S | 4.1 thousand | CH | 23 Feb 2019 |
| 70:B3:D5:89:2 | MA-S | 4.1 thousand | CH | 29 Nov 2015 |
| 70:B3:D5:C4:7 | MA-S | 4.1 thousand | CH | 18 Oct 2020 |
| 8C:1F:64:32:A | MA-S | 4.1 thousand | CH | 13 May 2025 |
| 8C:1F:64:6D:0 | MA-S | 4.1 thousand | CH | 20 Oct 2022 |
| 8C:1F:64:71:8 | MA-S | 4.1 thousand | CH | 20 Oct 2023 |
| 8C:1F:64:85:2 | MA-S | 4.1 thousand | CH | 18 Oct 2022 |
| 8C:1F:64:B2:4 | MA-S | 4.1 thousand | CH | 17 Nov 2023 |
| 8C:1F:64:FB:1 | MA-S | 4.1 thousand | CH | 24 Aug 2021 |
Every block registered to ABB in the IEEE registries, complete. Free-text search also matches former owners.