| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 70:B3:D5:43:F | MA-S | 4.1 thousand | JP | 24 Jun 2018 |
| 70:B3:D5:D2:1 | MA-S | 4.1 thousand | JP | 9 Feb 2021 |
| 8C:1F:64:0D:2 | MA-S | 4.1 thousand | JP | 17 Nov 2023 |
| 8C:1F:64:34:D | MA-S | 4.1 thousand | JP | 23 Jun 2022 |
| 8C:1F:64:35:0 | MA-S | 4.1 thousand | JP | 16 Dec 2022 |
| 8C:1F:64:64:1 | MA-S | 4.1 thousand | JP | 22 Dec 2021 |
Every block registered to biosilver .co.,ltd in the IEEE registries, complete. Free-text search also matches former owners.