Who owns MAC prefix 3C39C3?

3C39C3 is registered to JW Electronics Co., Ltd. in the IEEE MA-L registry.

What devices use 3C39C3?

Any network device with a MAC address starting 3C:39:C3 was manufactured by or for JW Electronics Co., Ltd..

MA-L · OUI prefix

JW Electronics Co., Ltd.

Any MAC address starting 3C:39:C3 is registered to JW Electronics Co., Ltd. in TW.

OUI prefix	3C39C3
Vendor	JW Electronics Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	TW
Example MAC	3C:39:C3:00:00:00

What this means

The IEEE assigned the MA-L block 3C39C3 to JW Electronics 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:39:C3, it is JW Electronics Co., Ltd. hardware.

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