What this means
The IEEE assigned the MA-L block B481BF to Meta-Networks, 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 B4:81:BF, it is Meta-Networks, LLC hardware.
Frequently Asked Questions
Who owns MAC prefix B481BF?
B481BF is registered to Meta-Networks, LLC 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. Meta-Networks, LLC's block covers 16,777,216 addresses.
What devices use B481BF?
Any network device with a MAC address starting B4:81:BF was manufactured by or for Meta-Networks, LLC.