Who owns MAC prefix 70B3D5F33?

70B3D5F33 is registered to Beijing Vizum Technology Co.,Ltd. in the IEEE MA-S registry.

What devices use 70B3D5F33?

Any network device with a MAC address starting 70:B3:D5:F3:3 was manufactured by or for Beijing Vizum Technology Co.,Ltd..

MA-S · OUI prefix

Beijing Vizum Technology Co.,Ltd.

Any MAC address starting 70:B3:D5:F3:3 is registered to Beijing Vizum Technology Co.,Ltd. in CN.

OUI prefix	70B3D5F33
Vendor	Beijing Vizum Technology Co.,Ltd.
Registry	MA-S (36-bit, small block)
Country	CN
Example MAC	70:B3:D5:F3:3:00:00:00

What this means

The IEEE assigned the MA-S block 70B3D5F33 to Beijing Vizum 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 70:B3:D5:F3:3, it is Beijing Vizum Technology Co.,Ltd. hardware.

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