What this means
The IEEE assigned the MA-L block 00128C to Woodward Governor. 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 00:12:8C, it is Woodward Governor hardware.
Frequently Asked Questions
Who owns MAC prefix 00128C?
00128C is registered to Woodward Governor 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. Woodward Governor's block covers 16,777,216 addresses.
What devices use 00128C?
Any network device with a MAC address starting 00:12:8C was manufactured by or for Woodward Governor.