What this means
The IEEE assigned the MA-L block 547D40 to Powervision Tech Inc.. 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 54:7D:40, it is Powervision Tech Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 547D40?
547D40 is registered to Powervision Tech Inc. 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. Powervision Tech Inc.'s block covers 16,777,216 addresses.
What devices use 547D40?
Any network device with a MAC address starting 54:7D:40 was manufactured by or for Powervision Tech Inc..