Who owns MAC prefix 00129F?

00129F is registered to RAE Systems in the IEEE MA-L registry.

What devices use 00129F?

Any network device with a MAC address starting 00:12:9F was manufactured by or for RAE Systems.

MA-L · OUI prefix

RAE Systems

Any MAC address starting 00:12:9F is registered to RAE Systems in US.

OUI prefix	00129F
Vendor	RAE Systems
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	00:12:9F:00:00:00

What this means

The IEEE assigned the MA-L block 00129F to RAE Systems. 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 00:12:9F, it is RAE Systems hardware.

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