What this means
The IEEE assigned the MA-L block F4645D to Toshiba. 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 F4:64:5D, it is Toshiba hardware.
Frequently Asked Questions
Who owns MAC prefix F4645D?
F4645D is registered to Toshiba 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. Toshiba's block covers 16,777,216 addresses.
What devices use F4645D?
Any network device with a MAC address starting F4:64:5D was manufactured by or for Toshiba.