The IEEE registry carries 2 blocks registered to Masterclock, Inc., together 16.8 million addresses, first observed 14 Apr 2008, most recently 30 Jul 2008.
Registered in US.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:21:32 | MA-L | 16.8 million | US | 14 Apr 2008 |
| 00:50:C2:16:B | IAB | 4.1 thousand | US | 30 Jul 2008 |
Every block registered to Masterclock, Inc. 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.