Who owns MAC prefix 0040F6?

0040F6 is registered to KATRON COMPUTERS INC. in the IEEE MA-L registry.

What devices use 0040F6?

Any network device with a MAC address starting 00:40:F6 was manufactured by or for KATRON COMPUTERS INC..

MA-L · OUI prefix

KATRON COMPUTERS INC.

Any MAC address starting 00:40:F6 is registered to KATRON COMPUTERS INC. in TW.

OUI prefix	0040F6
Vendor	KATRON COMPUTERS INC.
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	00:40:F6:00:00:00

What this means

The IEEE assigned the MA-L block 0040F6 to KATRON COMPUTERS 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 00:40:F6, it is KATRON COMPUTERS INC. hardware.

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