The IEEE registry carries 3 blocks registered to ATH system, together 16.8 million addresses, first observed 30 Jul 2008, most recently 16 Dec 2012.
Registered in CZ.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 60:B1:85 | MA-L | 16.8 million | CZ | 16 Dec 2012 |
| 00:50:C2:55:3 | IAB | 4.1 thousand | CZ | 30 Jul 2008 |
| 00:50:C2:D4:A | IAB | 4.1 thousand | CZ | 24 Oct 2010 |
Every block registered to ATH system 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.