What this means
The IEEE assigned the MA-M block BC9740E to B4ComTechnologies LLC. 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:E, it is B4ComTechnologies LLC hardware.
Frequently Asked Questions
Who owns MAC prefix BC9740E?
BC9740E is registered to B4ComTechnologies LLC 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. B4ComTechnologies LLC's block covers 1,048,576 addresses.
What devices use BC9740E?
Any network device with a MAC address starting BC:97:40:E was manufactured by or for B4ComTechnologies LLC.