Who owns MAC prefix A4CD23?

A4CD23 is registered to Shenzhenshi Xinzhongxin Co., Ltd in the IEEE MA-L registry.

What devices use A4CD23?

Any network device with a MAC address starting A4:CD:23 was manufactured by or for Shenzhenshi Xinzhongxin Co., Ltd.

MA-L · OUI prefix

Shenzhenshi Xinzhongxin Co., Ltd

Any MAC address starting A4:CD:23 is registered to Shenzhenshi Xinzhongxin Co., Ltd in CN.

OUI prefix	A4CD23
Vendor	Shenzhenshi Xinzhongxin Co., Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	A4:CD:23:00:00:00

What this means

The IEEE assigned the MA-L block A4CD23 to Shenzhenshi Xinzhongxin 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 A4:CD:23, it is Shenzhenshi Xinzhongxin Co., Ltd hardware.

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