HFR, Inc. MAC address blocks

The IEEE registry carries 2 blocks registered to HFR, Inc., together 33.6 million addresses, first observed 8 Oct 2008, most recently 31 May 2018.

Registered in KR.

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
00:23:AA	MA-L	16.8 million	KR	8 Oct 2008
04:09:A5	MA-L	16.8 million	KR	31 May 2018

Every block registered to HFR, 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.