Who owns MAC prefix 547D40?

547D40 is registered to Powervision Tech Inc. in the IEEE MA-L registry.

What devices use 547D40?

Any network device with a MAC address starting 54:7D:40 was manufactured by or for Powervision Tech Inc..

MA-L · OUI prefix

Powervision Tech Inc.

Any MAC address starting 54:7D:40 is registered to Powervision Tech Inc. in CN.

OUI prefix	547D40
Vendor	Powervision Tech Inc.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	54:7D:40:00:00:00

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.

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