What devices use C027B9?

Any network device with a MAC address starting C0:27:B9 was manufactured by or for Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd..

MA-L · OUI prefix

Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd.

Q: Who owns MAC prefix C027B9?

C027B9 is registered to Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd. in the IEEE MA-L registry.

Any MAC address starting C0:27:B9 is registered to Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd. in CN.

OUI prefix	C027B9
Vendor	Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	C0:27:B9:00:00:00

What this means

The IEEE assigned the MA-L block C027B9 to Beijing National Railway Research & Design Institute of Signal & Communication 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 C0:27:B9, it is Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd. hardware.

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