What this means
The IEEE assigned the MA-L block 58528A 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 58:52:8A, it is Mitsubishi Electric Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 58528A?
58528A 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 58528A?
Any network device with a MAC address starting 58:52:8A was manufactured by or for Mitsubishi Electric Corporation.