Who owns MAC prefix D047C1?

D047C1 is registered to Elma Electronic AG in the IEEE MA-L registry.

What devices use D047C1?

Any network device with a MAC address starting D0:47:C1 was manufactured by or for Elma Electronic AG.

MA-L · OUI prefix

Elma Electronic AG

Any MAC address starting D0:47:C1 is registered to Elma Electronic AG in CH.

OUI prefix	D047C1
Vendor	Elma Electronic AG
Registry	MA-L (24-bit, large block)
Country	CH
Example MAC	D0:47:C1:00:00:00

What this means

The IEEE assigned the MA-L block D047C1 to Elma Electronic AG. 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 D0:47:C1, it is Elma Electronic AG hardware.

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