| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:C3:5 | IAB | 4.1 thousand | US | 14 Mar 2010 |
| 00:50:C2:FD:4 | IAB | 4.1 thousand | US | 5 Aug 2012 |
| 70:B3:D5:7A:D | MA-S | 4.1 thousand | US | 1 Feb 2015 |
| 70:B3:D5:86:5 | MA-S | 4.1 thousand | US | 23 Nov 2019 |
| 70:B3:D5:B3:B | MA-S | 4.1 thousand | US | 12 Nov 2017 |
| 70:B3:D5:D3:6 | MA-S | 4.1 thousand | US | 28 Nov 2018 |
| 70:B3:D5:DD:2 | MA-S | 4.1 thousand | US | 7 Sep 2018 |
Every block registered to Insitu, Inc in the IEEE registries, complete. Free-text search also matches former owners.