Who owns MAC prefix B03850?

B03850 is registered to Nanjing CAS-ZDC IOT SYSTEM CO.,LTD in the IEEE MA-L registry.

What devices use B03850?

Any network device with a MAC address starting B0:38:50 was manufactured by or for Nanjing CAS-ZDC IOT SYSTEM CO.,LTD.

MA-L · OUI prefix

Nanjing CAS-ZDC IOT SYSTEM CO.,LTD

Any MAC address starting B0:38:50 is registered to Nanjing CAS-ZDC IOT SYSTEM CO.,LTD in CN.

OUI prefix	B03850
Vendor	Nanjing CAS-ZDC IOT SYSTEM CO.,LTD
Registry	MA-L (24-bit, large block)
Country	CN
Example MAC	B0:38:50:00:00:00

What this means

The IEEE assigned the MA-L block B03850 to Nanjing CAS-ZDC IOT SYSTEM 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 B0:38:50, it is Nanjing CAS-ZDC IOT SYSTEM CO.,LTD hardware.

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