Who owns MAC prefix 84ACFB?

84ACFB is registered to Crouzet Automatismes in the IEEE MA-L registry.

What devices use 84ACFB?

Any network device with a MAC address starting 84:AC:FB was manufactured by or for Crouzet Automatismes.

MA-L · OUI prefix

Crouzet Automatismes

Any MAC address starting 84:AC:FB is registered to Crouzet Automatismes in FR.

OUI prefix	84ACFB
Vendor	Crouzet Automatismes
Registry	MA-L (24-bit, large block)
Country	FR
Example MAC	84:AC:FB:00:00:00

What this means

The IEEE assigned the MA-L block 84ACFB to Crouzet Automatismes. 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 84:AC:FB, it is Crouzet Automatismes hardware.

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