Devices with MAC addresses that start with C0-27-B9 were manufactured by Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd.

Device ManufacturerBeijing National Railway Research & Design Institute of Signal & Communication Co., Ltd.
Building No.18, Huayuan YiLi,Fengtai District,
Beijing 100073
Estimated Devices with C0-27-B916256250
Estimated Total Devices From Mfg16256250
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