What this means
The IEEE assigned the MA-M block F8C9D64 to Active Research Limited. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting F8:C9:D6:4, it is Active Research Limited hardware.
Frequently Asked Questions
Who owns MAC prefix F8C9D64?
F8C9D64 is registered to Active Research Limited in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Active Research Limited's block covers 1,048,576 addresses.
What devices use F8C9D64?
Any network device with a MAC address starting F8:C9:D6:4 was manufactured by or for Active Research Limited.