Who owns MAC prefix 00207F?

00207F is registered to KYOEI SANGYO CO., LTD. in the IEEE MA-L registry.

What devices use 00207F?

Any network device with a MAC address starting 00:20:7F was manufactured by or for KYOEI SANGYO CO., LTD..

MA-L · OUI prefix

KYOEI SANGYO CO., LTD.

Any MAC address starting 00:20:7F is registered to KYOEI SANGYO CO., LTD. in JP.

OUI prefix	00207F
Vendor	KYOEI SANGYO CO., LTD.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	00:20:7F:00:00:00

What this means

The IEEE assigned the MA-L block 00207F to KYOEI SANGYO CO., 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 00:20:7F, it is KYOEI SANGYO CO., LTD. hardware.

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