What this means
The IEEE assigned the MA-L block 4097D1 to BK Electronics cc. 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 40:97:D1, it is BK Electronics cc hardware.
Frequently Asked Questions
Who owns MAC prefix 4097D1?
4097D1 is registered to BK Electronics cc in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. BK Electronics cc's block covers 16,777,216 addresses.
What devices use 4097D1?
Any network device with a MAC address starting 40:97:D1 was manufactured by or for BK Electronics cc.