What this means
The IEEE assigned the MA-M block BC97400 to Alpha ESS Co., Ltd.. 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 BC:97:40:0, it is Alpha ESS Co., Ltd. hardware.
Frequently Asked Questions
Who owns MAC prefix BC97400?
BC97400 is registered to Alpha ESS Co., Ltd. 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. Alpha ESS Co., Ltd.'s block covers 1,048,576 addresses.
What devices use BC97400?
Any network device with a MAC address starting BC:97:40:0 was manufactured by or for Alpha ESS Co., Ltd..