Who owns MAC prefix B83A7B?

B83A7B is registered to Worldplay (Canada) Inc. in the IEEE MA-L registry.

What devices use B83A7B?

Any network device with a MAC address starting B8:3A:7B was manufactured by or for Worldplay (Canada) Inc..

MA-L · OUI prefix

Worldplay (Canada) Inc.

Any MAC address starting B8:3A:7B is registered to Worldplay (Canada) Inc..

OUI prefix	B83A7B
Vendor	Worldplay (Canada) Inc.
Registry	MA-L (24-bit, large block)
Example MAC	B8:3A:7B:00:00:00

What this means

The IEEE assigned the MA-L block B83A7B to Worldplay (Canada) Inc.. 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 B8:3A:7B, it is Worldplay (Canada) Inc. hardware.

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