What devices use 70B3D5856?

Any network device with a MAC address starting 70:B3:D5:85:6 was manufactured by or for Shanghai Westwell Information and Technology Company Ltd.

MA-S · OUI prefix

Shanghai Westwell Information and Technology Company Ltd

Q: Who owns MAC prefix 70B3D5856?

70B3D5856 is registered to Shanghai Westwell Information and Technology Company Ltd in the IEEE MA-S registry.

Any MAC address starting 70:B3:D5:85:6 is registered to Shanghai Westwell Information and Technology Company Ltd in CN.

OUI prefix	70B3D5856
Vendor	Shanghai Westwell Information and Technology Company Ltd
Registry	MA-S (36-bit, small block)
Country	CN
Example MAC	70:B3:D5:85:6:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5856 to Shanghai Westwell Information and Technology Company 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 70:B3:D5:85:6, it is Shanghai Westwell Information and Technology Company Ltd hardware.

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