What this means
The IEEE assigned the MA-M block 78E9966 to Kilews. 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 78:E9:96:6, it is Kilews hardware.
Frequently Asked Questions
Who owns MAC prefix 78E9966?
78E9966 is registered to Kilews 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. Kilews's block covers 1,048,576 addresses.
What devices use 78E9966?
Any network device with a MAC address starting 78:E9:96:6 was manufactured by or for Kilews.