Who owns MAC prefix 40FA7F?

40FA7F is registered to Preh Car Connect GmbH in the IEEE MA-L registry.

What devices use 40FA7F?

Any network device with a MAC address starting 40:FA:7F was manufactured by or for Preh Car Connect GmbH.

MA-L · OUI prefix

Preh Car Connect GmbH

Any MAC address starting 40:FA:7F is registered to Preh Car Connect GmbH in DE.

OUI prefix	40FA7F
Vendor	Preh Car Connect GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	40:FA:7F:00:00:00

What this means

The IEEE assigned the MA-L block 40FA7F to Preh Car Connect GmbH. 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 40:FA:7F, it is Preh Car Connect GmbH hardware.

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