Who owns MAC prefix 002137?

002137 is registered to Bay Controls, LLC in the IEEE MA-L registry.

What devices use 002137?

Any network device with a MAC address starting 00:21:37 was manufactured by or for Bay Controls, LLC.

MA-L · OUI prefix

Bay Controls, LLC

Any MAC address starting 00:21:37 is registered to Bay Controls, LLC in US.

OUI prefix	002137
Vendor	Bay Controls, LLC
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:21:37:00:00:00

What this means

The IEEE assigned the MA-L block 002137 to Bay Controls, LLC. 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 00:21:37, it is Bay Controls, LLC hardware.

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