What this means
The IEEE assigned the MA-L block 509772 to Westinghouse Digital. 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 50:97:72, it is Westinghouse Digital hardware.
Frequently Asked Questions
Who owns MAC prefix 509772?
509772 is registered to Westinghouse Digital 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. Westinghouse Digital's block covers 16,777,216 addresses.
What devices use 509772?
Any network device with a MAC address starting 50:97:72 was manufactured by or for Westinghouse Digital.