Who owns MAC prefix B4ECF2?

B4ECF2 is registered to Shanghai Listent Medical Tech Co., Ltd. in the IEEE MA-L registry.

What devices use B4ECF2?

Any network device with a MAC address starting B4:EC:F2 was manufactured by or for Shanghai Listent Medical Tech Co., Ltd..

MA-L · OUI prefix

Shanghai Listent Medical Tech Co., Ltd.

Any MAC address starting B4:EC:F2 is registered to Shanghai Listent Medical Tech Co., Ltd. in CN.

OUI prefix	B4ECF2
Vendor	Shanghai Listent Medical Tech Co., Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	B4:EC:F2:00:00:00

What this means

The IEEE assigned the MA-L block B4ECF2 to Shanghai Listent Medical Tech 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:EC:F2, it is Shanghai Listent Medical Tech Co., Ltd. hardware.

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