Who owns MAC prefix C47B80?

C47B80 is registered to Protempis, LLC in the IEEE MA-L registry.

What devices use C47B80?

Any network device with a MAC address starting C4:7B:80 was manufactured by or for Protempis, LLC.

MA-L · OUI prefix

Protempis, LLC

Any MAC address starting C4:7B:80 is registered to Protempis, LLC in US.

OUI prefix	C47B80
Vendor	Protempis, LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	C4:7B:80:00:00:00

What this means

The IEEE assigned the MA-L block C47B80 to Protempis, LLC. 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 C4:7B:80, it is Protempis, LLC hardware.

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