Who owns MAC prefix E4F7A1?

E4F7A1 is registered to Datafox GmbH in the IEEE MA-L registry.

What devices use E4F7A1?

Any network device with a MAC address starting E4:F7:A1 was manufactured by or for Datafox GmbH.

MA-L · OUI prefix

Datafox GmbH

Any MAC address starting E4:F7:A1 is registered to Datafox GmbH in DE.

OUI prefix	E4F7A1
Vendor	Datafox GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	E4:F7:A1:00:00:00

What this means

The IEEE assigned the MA-L block E4F7A1 to Datafox 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 E4:F7:A1, it is Datafox GmbH hardware.

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