Who owns MAC prefix 8C3330?

8C3330 is registered to EmFirst Co., Ltd. in the IEEE MA-L registry.

What devices use 8C3330?

Any network device with a MAC address starting 8C:33:30 was manufactured by or for EmFirst Co., Ltd..

MA-L · OUI prefix

EmFirst Co., Ltd.

Any MAC address starting 8C:33:30 is registered to EmFirst Co., Ltd. in KR.

OUI prefix	8C3330
Vendor	EmFirst Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	KR
Example MAC	8C:33:30:00:00:00

What this means

The IEEE assigned the MA-L block 8C3330 to EmFirst 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 8C:33:30, it is EmFirst Co., Ltd. hardware.

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