Who owns MAC prefix D4B43E?

D4B43E is registered to Messcomp Datentechnik GmbH in the IEEE MA-L registry.

What devices use D4B43E?

Any network device with a MAC address starting D4:B4:3E was manufactured by or for Messcomp Datentechnik GmbH.

MA-L · OUI prefix

Messcomp Datentechnik GmbH

Any MAC address starting D4:B4:3E is registered to Messcomp Datentechnik GmbH in DE.

OUI prefix	D4B43E
Vendor	Messcomp Datentechnik GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	D4:B4:3E:00:00:00

What this means

The IEEE assigned the MA-L block D4B43E to Messcomp Datentechnik 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 D4:B4:3E, it is Messcomp Datentechnik GmbH hardware.

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