The IEEE registry carries 2 blocks registered to Ultra Electronics Sonar System Division, together 16.8 million addresses, first observed 9 Jul 2013, most recently 12 Jan 2014.
Registered in GB.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 7C:06:23 | MA-L | 16.8 million | GB | 9 Jul 2013 |
| 70:B3:D5:3E:D | MA-S | 4.1 thousand | GB | 12 Jan 2014 |
Every block registered to Ultra Electronics Sonar System Division in the IEEE registries, complete. Free-text search also matches former owners.
Complete as of the current IEEE registry deploy. Dates are when each registration was first observed in public data, not legal assignment dates.