Who owns MAC prefix 747563?

747563 is registered to Duke Manufacturing in the IEEE MA-L registry.

What devices use 747563?

Any network device with a MAC address starting 74:75:63 was manufactured by or for Duke Manufacturing.

MA-L · OUI prefix

Duke Manufacturing

Any MAC address starting 74:75:63 is registered to Duke Manufacturing in US.

OUI prefix	747563
Vendor	Duke Manufacturing
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	74:75:63:00:00:00

What this means

The IEEE assigned the MA-L block 747563 to Duke Manufacturing. 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 74:75:63, it is Duke Manufacturing hardware.

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