The IEEE registry carries 2 blocks registered to CONTEC GmbH, together 16.8 million addresses, first observed 5 Jan 2011, most recently 24 Oct 2013.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 74:6F:3D | MA-L | 16.8 million | DE | 24 Oct 2013 |
| 00:50:C2:D9:6 | IAB | 4.1 thousand | AT | 5 Jan 2011 |
Every block registered to CONTEC GmbH 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.