What this means
The IEEE assigned the MA-L block 58C232 to NEC 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:C2:32, it is NEC Corporation hardware.
Frequently Asked Questions
Who owns MAC prefix 58C232?
58C232 is registered to NEC 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. NEC Corporation's block covers 16,777,216 addresses.
What devices use 58C232?
Any network device with a MAC address starting 58:C2:32 was manufactured by or for NEC Corporation.