Who owns MAC prefix 0CEFAFC?

0CEFAFC is registered to GainStrong Industry Co.,Ltd in the IEEE MA-M registry.

What devices use 0CEFAFC?

Any network device with a MAC address starting 0C:EF:AF:C was manufactured by or for GainStrong Industry Co.,Ltd.

MA-M · OUI prefix

GainStrong Industry Co.,Ltd

Any MAC address starting 0C:EF:AF:C is registered to GainStrong Industry Co.,Ltd in CN.

OUI prefix	0CEFAFC
Vendor	GainStrong Industry Co.,Ltd
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	0C:EF:AF:C:00:00:00

What this means

The IEEE assigned the MA-M block 0CEFAFC to GainStrong Industry 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 0C:EF:AF:C, it is GainStrong Industry Co.,Ltd hardware.

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