Who owns MAC prefix E81863B?

E81863B is registered to Protek Electronics Group Co.,LTD in the IEEE MA-M registry.

What devices use E81863B?

Any network device with a MAC address starting E8:18:63:B was manufactured by or for Protek Electronics Group Co.,LTD.

MA-M · OUI prefix

Protek Electronics Group Co.,LTD

Any MAC address starting E8:18:63:B is registered to Protek Electronics Group Co.,LTD in CN.

OUI prefix	E81863B
Vendor	Protek Electronics Group Co.,LTD
Registry	MA-M (28-bit, medium block)
Country	CN
Example MAC	E8:18:63:B:00:00:00

What this means

The IEEE assigned the MA-M block E81863B to Protek Electronics Group 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 E8:18:63:B, it is Protek Electronics Group Co.,LTD hardware.

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