| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:02:9 | IAB | 4.1 thousand | CH | 30 Jul 2008 |
| 00:50:C2:41:0 | IAB | 4.1 thousand | CH | 30 Jul 2008 |
| 00:50:C2:A6:2 | IAB | 4.1 thousand | CH | 22 Feb 2009 |
| 00:50:C2:F1:D | IAB | 4.1 thousand | CH | 22 Jan 2012 |
| 40:D8:55:0F:1 | IAB | 4.1 thousand | CH | 20 May 2013 |
| 70:B3:D5:0D:E | MA-S | 4.1 thousand | CH | 16 Jul 2017 |
| 70:B3:D5:0E:8 | MA-S | 4.1 thousand | CH | 8 Jan 2017 |
| 70:B3:D5:29:7 | MA-S | 4.1 thousand | CH | 1 Nov 2015 |
| 70:B3:D5:3E:B | MA-S | 4.1 thousand | CH | 4 Jul 2019 |
| 70:B3:D5:5E:2 | MA-S | 4.1 thousand | CH | 30 Oct 2016 |
| 70:B3:D5:5F:E | MA-S | 4.1 thousand | CH | 28 May 2020 |
| 70:B3:D5:6B:7 | MA-S | 4.1 thousand | CH | 11 Feb 2018 |
| 70:B3:D5:75:8 | MA-S | 4.1 thousand | CH | 6 May 2018 |
| 70:B3:D5:80:3 | MA-S | 4.1 thousand | CH | 6 Dec 2018 |
| 70:B3:D5:A9:2 | MA-S | 4.1 thousand | CH | 1 Mar 2015 |
| 70:B3:D5:B7:5 | MA-S | 4.1 thousand | CH | 18 Jan 2020 |
| 70:B3:D5:BB:5 | MA-S | 4.1 thousand | CH | 2 Mar 2019 |
| 70:B3:D5:C9:1 | MA-S | 4.1 thousand | CH | 17 Apr 2016 |
| 70:B3:D5:CE:8 | MA-S | 4.1 thousand | CH | 12 Dec 2020 |
| 8C:1F:64:11:7 | MA-S | 4.1 thousand | CH | 18 Aug 2022 |
| 8C:1F:64:20:D | MA-S | 4.1 thousand | CH | 20 Oct 2023 |
| 8C:1F:64:36:3 | MA-S | 4.1 thousand | CH | 29 Apr 2025 |
| 8C:1F:64:83:A | MA-S | 4.1 thousand | CH | 27 May 2021 |
| 8C:1F:64:8D:F | MA-S | 4.1 thousand | CH | 19 Jan 2023 |
| 8C:1F:64:99:B | MA-S | 4.1 thousand | CH | 19 Feb 2026 |
| 8C:1F:64:9F:4 | MA-S | 4.1 thousand | CH | 5 May 2022 |
| 8C:1F:64:AF:9 | MA-S | 4.1 thousand | CH | 29 May 2024 |
| 8C:1F:64:B1:8 | MA-S | 4.1 thousand | CH | 25 Jan 2024 |
| 8C:1F:64:B2:E | MA-S | 4.1 thousand | CH | 3 Aug 2026 |
| 8C:1F:64:E4:1 | MA-S | 4.1 thousand | CH | 9 Oct 2021 |
Every block registered to Grossenbacher Systeme AG in the IEEE registries, complete. Free-text search also matches former owners.