Who owns MAC prefix D0C42F?

D0C42F is registered to Tamagawa Seiki Co.,Ltd. in the IEEE MA-L registry.

What devices use D0C42F?

Any network device with a MAC address starting D0:C4:2F was manufactured by or for Tamagawa Seiki Co.,Ltd..

MA-L · OUI prefix

Tamagawa Seiki Co.,Ltd.

Any MAC address starting D0:C4:2F is registered to Tamagawa Seiki Co.,Ltd. in US.

OUI prefix	D0C42F
Vendor	Tamagawa Seiki Co.,Ltd.
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	D0:C4:2F:00:00:00

What this means

The IEEE assigned the MA-L block D0C42F to Tamagawa Seiki 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 D0:C4:2F, it is Tamagawa Seiki Co.,Ltd. hardware.

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