The IEEE registry carries 3 blocks registered to Spirent Communications, together 12.3 thousand addresses, first observed 30 Jul 2008, most recently 9 Sep 2012.
Registered in US.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:73:1 | IAB | 4.1 thousand | US | 30 Jul 2008 |
| 00:50:C2:C5:6 | IAB | 4.1 thousand | US | 4 Apr 2010 |
| 00:50:C2:FF:C | IAB | 4.1 thousand | US | 9 Sep 2012 |
Every block registered to Spirent Communications 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.