The IEEE registry carries 2 blocks registered to Brookhaven National Laboratory, together 1.1 million addresses, first observed 30 Jul 2008, most recently 9 Mar 2026.
Registered in US.
| Prefix | Block | Addresses | Country | First registered |
|---|---|---|---|---|
| 38:B1:4E:5 | MA-M | 1 million | US | 9 Mar 2026 |
| 00:50:C2:61:1 | IAB | 4.1 thousand | US | 30 Jul 2008 |
Every block registered to Brookhaven National Laboratory 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.