The IEEE registry carries 2 blocks registered to Watthour Engineering Co., Inc., together 8.2 thousand addresses, first observed 8 Oct 2008, most recently 7 Jan 2026.
Registered in US.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 00:50:C2:96:7 | IAB | 4.1 thousand | US | 8 Oct 2008 |
| 8C:1F:64:B0:E | MA-S | 4.1 thousand | US | 7 Jan 2026 |
Every block registered to Watthour Engineering Co., 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.