HPRO MAC address blocks

The IEEE registry carries 2 blocks registered to HPRO, together 33.6 million addresses, first observed 21 Jan 2026.

Registered in US.

Its portfolio also includes blocks acquired from HPRO-Control × 2.

Cumulative address space by first-observed date on a linear scale sized to this chart; hover for date and total.

Prefix	Block	Addresses	Country	First registered
50:EE:87	MA-L	16.8 million	US	21 Jan 2026
60:A1:FE	MA-L	16.8 million	US	21 Jan 2026

Every block registered to HPRO 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.