Who owns MAC prefix D4D249?

D4D249 is registered to Power Ethernet in the IEEE MA-L registry.

What devices use D4D249?

Any network device with a MAC address starting D4:D2:49 was manufactured by or for Power Ethernet.

MA-L · OUI prefix

Power Ethernet

Any MAC address starting D4:D2:49 is registered to Power Ethernet.

OUI prefix	D4D249
Vendor	Power Ethernet
Registry	MA-L (24-bit, large block)
Example MAC	D4:D2:49:00:00:00

What this means

The IEEE assigned the MA-L block D4D249 to Power Ethernet. 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 D4:D2:49, it is Power Ethernet hardware.

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