Who owns MAC prefix B81BCB?

B81BCB is registered to Shanghai Sunmi Technology Co.,Ltd. in the IEEE MA-L registry.

What devices use B81BCB?

Any network device with a MAC address starting B8:1B:CB was manufactured by or for Shanghai Sunmi Technology Co.,Ltd..

MA-L · OUI prefix

Shanghai Sunmi Technology Co.,Ltd.

Any MAC address starting B8:1B:CB is registered to Shanghai Sunmi Technology Co.,Ltd. in CN.

OUI prefix	B81BCB
Vendor	Shanghai Sunmi Technology Co.,Ltd.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	B8:1B:CB:00:00:00

What this means

The IEEE assigned the MA-L block B81BCB to Shanghai Sunmi Technology 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 B8:1B:CB, it is Shanghai Sunmi Technology Co.,Ltd. hardware.

Other Shanghai Sunmi Technology Co.,Ltd. prefixes

Shanghai Sunmi Technology Co.,Ltd. holds 4 registered blocks in total.

1C1A1B 68508C 74F7F6

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