Who owns MAC prefix A4E7E4?

A4E7E4 is registered to Connex GmbH in the IEEE MA-L registry.

What devices use A4E7E4?

Any network device with a MAC address starting A4:E7:E4 was manufactured by or for Connex GmbH.

MA-L · OUI prefix

Connex GmbH

Any MAC address starting A4:E7:E4 is registered to Connex GmbH in DE.

OUI prefix	A4E7E4
Vendor	Connex GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	A4:E7:E4:00:00:00

What this means

The IEEE assigned the MA-L block A4E7E4 to Connex 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 A4:E7:E4, it is Connex GmbH hardware.

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