Who owns MAC prefix A0FE91?

A0FE91 is registered to AVAT Automation GmbH in the IEEE MA-L registry.

What devices use A0FE91?

Any network device with a MAC address starting A0:FE:91 was manufactured by or for AVAT Automation GmbH.

MA-L · OUI prefix

AVAT Automation GmbH

Any MAC address starting A0:FE:91 is registered to AVAT Automation GmbH in DE.

OUI prefix	A0FE91
Vendor	AVAT Automation GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	A0:FE:91:00:00:00

What this means

The IEEE assigned the MA-L block A0FE91 to AVAT Automation 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 A0:FE:91, it is AVAT Automation GmbH hardware.

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