What devices use 1CA0D3B?

Any network device with a MAC address starting 1C:A0:D3:B was manufactured by or for Guang Dong He Zheng Network Technology Co.,Ltd.

MA-M · OUI prefix

Guang Dong He Zheng Network Technology Co.,Ltd

Q: Who owns MAC prefix 1CA0D3B?

1CA0D3B is registered to Guang Dong He Zheng Network Technology Co.,Ltd in the IEEE MA-M registry.

Any MAC address starting 1C:A0:D3:B is registered to Guang Dong He Zheng Network Technology Co.,Ltd in CN.

OUI prefix	1CA0D3B
Vendor	Guang Dong He Zheng Network Technology Co.,Ltd
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	1C:A0:D3:B:00:00:00

What this means

The IEEE assigned the MA-M block 1CA0D3B to Guang Dong He Zheng Network Technology 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 1C:A0:D3:B, it is Guang Dong He Zheng Network Technology Co.,Ltd hardware.

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