The IEEE registry carries 2 blocks registered to C21 Systems Ltd, together 8.2 thousand addresses, first observed 15 Mar 2015, most recently 12 Aug 2018.
Registered in GB.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 70:B3:D5:14:B | MA-S | 4.1 thousand | GB | 12 Aug 2018 |
| 70:B3:D5:7E:4 | MA-S | 4.1 thousand | GB | 15 Mar 2015 |
Every block registered to C21 Systems Ltd 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.