What devices use B4C170?

Any network device with a MAC address starting B4:C1:70 was manufactured by or for Yi chip Microelectronics (Hangzhou) Co., Ltd.

MA-L · OUI prefix

Yi chip Microelectronics (Hangzhou) Co., Ltd

Q: Who owns MAC prefix B4C170?

B4C170 is registered to Yi chip Microelectronics (Hangzhou) Co., Ltd in the IEEE MA-L registry.

Any MAC address starting B4:C1:70 is registered to Yi chip Microelectronics (Hangzhou) Co., Ltd in CN.

OUI prefix	B4C170
Vendor	Yi chip Microelectronics (Hangzhou) Co., Ltd
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	B4:C1:70:00:00:00

What this means

The IEEE assigned the MA-L block B4C170 to Yi chip Microelectronics (Hangzhou) 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 B4:C1:70, it is Yi chip Microelectronics (Hangzhou) Co., Ltd hardware.

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