What this means
The IEEE assigned the MA-L block B8921D to BG T&A. 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 B8:92:1D, it is BG T&A hardware.
Frequently Asked Questions
Who owns MAC prefix B8921D?
B8921D is registered to BG T&A 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. BG T&A's block covers 16,777,216 addresses.
What devices use B8921D?
Any network device with a MAC address starting B8:92:1D was manufactured by or for BG T&A.