Who owns MAC prefix D0CF5E?

D0CF5E is registered to Energy Micro AS in the IEEE MA-L registry.

What devices use D0CF5E?

Any network device with a MAC address starting D0:CF:5E was manufactured by or for Energy Micro AS.

MA-L · OUI prefix

Energy Micro AS

Any MAC address starting D0:CF:5E is registered to Energy Micro AS in NO.

OUI prefix	D0CF5E
Vendor	Energy Micro AS
Registry	MA-L (24-bit, large block)
Country	NO
Example MAC	D0:CF:5E:00:00:00

What this means

The IEEE assigned the MA-L block D0CF5E to Energy Micro AS. 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:CF:5E, it is Energy Micro AS hardware.

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