What this means
The IEEE assigned the MA-L block F4B520 to Biostar Microtech international corp.. 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 F4:B5:20, it is Biostar Microtech international corp. hardware.
Frequently Asked Questions
Who owns MAC prefix F4B520?
F4B520 is registered to Biostar Microtech international corp. 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. Biostar Microtech international corp.'s block covers 16,777,216 addresses.
What devices use F4B520?
Any network device with a MAC address starting F4:B5:20 was manufactured by or for Biostar Microtech international corp..