| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| FA:D9:88 | CID | 16.8 million | US | 13 Sep 2019 |
| 00:1B:C5:02:0 | MA-S | 4.1 thousand | US | 31 Mar 2013 |
| 00:1B:C5:07:7 | MA-S | 4.1 thousand | US | 31 Mar 2013 |
| 00:50:C2:19:5 | IAB | 4.1 thousand | US | 30 Jul 2008 |
| 00:50:C2:82:F | IAB | 4.1 thousand | US | 30 Jul 2008 |
| 70:B3:D5:11:6 | MA-S | 4.1 thousand | US | 4 Aug 2020 |
| 70:B3:D5:E4:5 | MA-S | 4.1 thousand | US | 6 Dec 2015 |
Every block registered to Momentum Data Systems in the IEEE registries, complete. Free-text search also matches former owners.