What this means
The IEEE assigned the MA-L block 104B46 to Mitsubishi Electric Corporation. 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 10:4B:46, it is Mitsubishi Electric Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 104B46?
104B46 is registered to Mitsubishi Electric Corporation 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. Mitsubishi Electric Corporation's block covers 16,777,216 addresses.
What devices use 104B46?
Any network device with a MAC address starting 10:4B:46 was manufactured by or for Mitsubishi Electric Corporation.