Who owns MAC prefix 4CB21C?

4CB21C is registered to Maxphotonics Co.,Ltd in the IEEE MA-L registry.

What devices use 4CB21C?

Any network device with a MAC address starting 4C:B2:1C was manufactured by or for Maxphotonics Co.,Ltd.

MA-L · OUI prefix

Maxphotonics Co.,Ltd

Any MAC address starting 4C:B2:1C is registered to Maxphotonics Co.,Ltd in CN.

OUI prefix	4CB21C
Vendor	Maxphotonics Co.,Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	4C:B2:1C:00:00:00

What this means

The IEEE assigned the MA-L block 4CB21C to Maxphotonics 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 4C:B2:1C, it is Maxphotonics Co.,Ltd hardware.

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