What devices use B4C476?

Any network device with a MAC address starting B4:C4:76 was manufactured by or for Wuhan Maritime Communication Research Institute.

MA-L · OUI prefix

Wuhan Maritime Communication Research Institute

Q: Who owns MAC prefix B4C476?

B4C476 is registered to Wuhan Maritime Communication Research Institute in the IEEE MA-L registry.

Any MAC address starting B4:C4:76 is registered to Wuhan Maritime Communication Research Institute in CN.

OUI prefix	B4C476
Vendor	Wuhan Maritime Communication Research Institute
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	B4:C4:76:00:00:00

What this means

The IEEE assigned the MA-L block B4C476 to Wuhan Maritime Communication Research Institute. 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:C4:76, it is Wuhan Maritime Communication Research Institute hardware.

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