| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 8C:1F:64:44:1 | MA-S | 4.1 thousand | US | 25 Oct 2023 |
| 8C:1F:64:47:E | MA-S | 4.1 thousand | US | 10 Jul 2024 |
| 8C:1F:64:51:0 | MA-S | 4.1 thousand | US | 6 Nov 2021 |
| 8C:1F:64:58:E | MA-S | 4.1 thousand | US | 8 Sep 2022 |
| 8C:1F:64:AD:8 | MA-S | 4.1 thousand | US | 6 May 2023 |
| 8C:1F:64:DF:D | MA-S | 4.1 thousand | US | 15 Oct 2025 |
Every block registered to Novanta IMS in the IEEE registries, complete. Free-text search also matches former owners.