| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:A7:8 | IAB | 4.1 thousand | US | 15 Mar 2009 |
| 40:D8:55:0A:9 | IAB | 4.1 thousand | US | 24 Feb 2013 |
| 70:B3:D5:45:0 | MA-S | 4.1 thousand | US | 3 Apr 2021 |
| 70:B3:D5:CD:5 | MA-S | 4.1 thousand | US | 25 Sep 2016 |
| 8C:1F:64:47:1 | MA-S | 4.1 thousand | US | 7 Mar 2026 |
| 8C:1F:64:4C:9 | MA-S | 4.1 thousand | US | 24 Oct 2023 |
Every block registered to Apantac LLC in the IEEE registries, complete. Free-text search also matches former owners.