The IEEE registry carries 2 blocks registered to QT systems ab, together 1.1 million addresses, first observed 30 Jul 2008, most recently 22 Aug 2021.
Registered in SE.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:41:7 | IAB | 4.1 thousand | SE | 30 Jul 2008 |
| 78:72:64:D | MA-M | 1 million | SE | 22 Aug 2021 |
Every block registered to QT systems ab 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.