The IEEE registry carries 3 blocks registered to Open System Solutions Limited, together 12.3 thousand addresses, first observed 30 Jul 2008, most recently 30 Sep 2018.
Registered in GB.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:81:1 | IAB | 4.1 thousand | GB | 30 Jul 2008 |
| 70:B3:D5:44:B | MA-S | 4.1 thousand | GB | 3 Aug 2014 |
| 70:B3:D5:FA:B | MA-S | 4.1 thousand | GB | 30 Sep 2018 |
Every block registered to Open System Solutions Limited 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.