Who owns MAC prefix 28F532?

28F532 is registered to ADD-Engineering BV in the IEEE MA-L registry.

What devices use 28F532?

Any network device with a MAC address starting 28:F5:32 was manufactured by or for ADD-Engineering BV.

MA-L · OUI prefix

ADD-Engineering BV

Any MAC address starting 28:F5:32 is registered to ADD-Engineering BV in AW.

OUI prefix	28F532
Vendor	ADD-Engineering BV
Registry	MA-L (24-bit, large block)
Country	AW
Example MAC	28:F5:32:00:00:00

What this means

The IEEE assigned the MA-L block 28F532 to ADD-Engineering BV. 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 28:F5:32, it is ADD-Engineering BV hardware.

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