Who owns MAC prefix D4D50D?

D4D50D is registered to Southwest Microwave, Inc in the IEEE MA-L registry.

What devices use D4D50D?

Any network device with a MAC address starting D4:D5:0D was manufactured by or for Southwest Microwave, Inc.

MA-L · OUI prefix

Southwest Microwave, Inc

Any MAC address starting D4:D5:0D is registered to Southwest Microwave, Inc in US.

OUI prefix	D4D50D
Vendor	Southwest Microwave, Inc
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	D4:D5:0D:00:00:00

What this means

The IEEE assigned the MA-L block D4D50D to Southwest Microwave, 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 D4:D5:0D, it is Southwest Microwave, Inc hardware.

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