| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| C8:F5:D6:E | MA-M | 1 million | DE | 11 Mar 2021 |
| 40:D8:55:0E:8 | IAB | 4.1 thousand | DE | 20 May 2013 |
| 70:B3:D5:22:8 | MA-S | 4.1 thousand | DE | 19 Nov 2017 |
| 70:B3:D5:55:7 | MA-S | 4.1 thousand | DE | 16 Jul 2017 |
| 70:B3:D5:F4:8 | MA-S | 4.1 thousand | DE | 13 Apr 2019 |
| 8C:1F:64:04:2 | MA-S | 4.1 thousand | DE | 7 Sep 2023 |
| 8C:1F:64:28:0 | MA-S | 4.1 thousand | DE | 9 Feb 2024 |
| 8C:1F:64:3E:9 | MA-S | 4.1 thousand | DE | 31 Jan 2025 |
| 8C:1F:64:5B:C | MA-S | 4.1 thousand | DE | 5 Nov 2021 |
| 8C:1F:64:72:4 | MA-S | 4.1 thousand | DE | 11 Jan 2025 |
| 8C:1F:64:7E:1 | MA-S | 4.1 thousand | DE | 20 Jun 2023 |
| 8C:1F:64:E2:5 | MA-S | 4.1 thousand | DE | 2 Mar 2026 |
| 8C:1F:64:E5:8 | MA-S | 4.1 thousand | DE | 20 Sep 2024 |
| 8C:1F:64:E7:6 | MA-S | 4.1 thousand | DE | 4 Jun 2024 |
Every block registered to HEITEC AG in the IEEE registries, complete. Free-text search also matches former owners.