Who owns MAC prefix 3C6A7D?

3C6A7D is registered to Niigata Power Systems Co., Ltd. in the IEEE MA-L registry.

What devices use 3C6A7D?

Any network device with a MAC address starting 3C:6A:7D was manufactured by or for Niigata Power Systems Co., Ltd..

MA-L · OUI prefix

Niigata Power Systems Co., Ltd.

Any MAC address starting 3C:6A:7D is registered to Niigata Power Systems Co., Ltd. in JP.

OUI prefix	3C6A7D
Vendor	Niigata Power Systems Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	JP
Example MAC	3C:6A:7D:00:00:00

What this means

The IEEE assigned the MA-L block 3C6A7D to Niigata Power Systems 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 3C:6A:7D, it is Niigata Power Systems Co., Ltd. hardware.

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