Who owns MAC prefix A43BFAA?

A43BFAA is registered to Plus One Japan Ltd. in the IEEE MA-M registry.

What devices use A43BFAA?

Any network device with a MAC address starting A4:3B:FA:A was manufactured by or for Plus One Japan Ltd..

MA-M · OUI prefix

Plus One Japan Ltd.

Any MAC address starting A4:3B:FA:A is registered to Plus One Japan Ltd. in JP.

OUI prefix	A43BFAA
Vendor	Plus One Japan Ltd.
Registry	MA-M (28-bit, medium block)
Country	JP
Example MAC	A4:3B:FA:A:00:00:00

What this means

The IEEE assigned the MA-M block A43BFAA to Plus One Japan Ltd.. 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 A4:3B:FA:A, it is Plus One Japan Ltd. hardware.

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