Who owns MAC prefix F4A4542?

F4A4542 is registered to TRI WORKS in the IEEE MA-M registry.

What devices use F4A4542?

Any network device with a MAC address starting F4:A4:54:2 was manufactured by or for TRI WORKS.

MA-M · OUI prefix

TRI WORKS

Any MAC address starting F4:A4:54:2 is registered to TRI WORKS in JP.

OUI prefix	F4A4542
Vendor	TRI WORKS
Registry	MA-M (28-bit, medium block)
Country	JP
Example MAC	F4:A4:54:2:00:00:00

What this means

The IEEE assigned the MA-M block F4A4542 to TRI WORKS. 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 F4:A4:54:2, it is TRI WORKS hardware.

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