What devices use 3071B2?

Any network device with a MAC address starting 30:71:B2 was manufactured by or for Hangzhou Prevail Optoelectronic Equipment Co.,LTD..

MA-L · OUI prefix

Hangzhou Prevail Optoelectronic Equipment Co.,LTD.

Q: Who owns MAC prefix 3071B2?

3071B2 is registered to Hangzhou Prevail Optoelectronic Equipment Co.,LTD. in the IEEE MA-L registry.

Any MAC address starting 30:71:B2 is registered to Hangzhou Prevail Optoelectronic Equipment Co.,LTD. in CN.

OUI prefix	3071B2
Vendor	Hangzhou Prevail Optoelectronic Equipment Co.,LTD.
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	30:71:B2:00:00:00

What this means

The IEEE assigned the MA-L block 3071B2 to Hangzhou Prevail Optoelectronic Equipment 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 30:71:B2, it is Hangzhou Prevail Optoelectronic Equipment Co.,LTD. hardware.

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