The IEEE registry carries 2 blocks registered to Halliburton - Sperry Drilling Service, together 8.2 thousand addresses, first observed 30 Jul 2008, most recently 9 Jun 2013.
Registered in US.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:45:E | IAB | 4.1 thousand | US | 30 Jul 2008 |
| 40:D8:55:11:2 | IAB | 4.1 thousand | US | 9 Jun 2013 |
Every block registered to Halliburton - Sperry Drilling Service 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.