Facebook Inc MAC address blocks

The IEEE registry carries 2 blocks registered to Facebook Inc, together 33.6 million addresses, first observed 14 Jun 2014, most recently 4 Mar 2017.

Registered in US.

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
48:57:DD	MA-L	16.8 million	US	14 Jun 2014
A4:0E:2B	MA-L	16.8 million	US	4 Mar 2017

Every block registered to Facebook 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.