Who owns MAC prefix D0F73B?

D0F73B is registered to Helmut Mauell GmbH Werk Weida in the IEEE MA-L registry.

What devices use D0F73B?

Any network device with a MAC address starting D0:F7:3B was manufactured by or for Helmut Mauell GmbH Werk Weida.

MA-L · OUI prefix

Helmut Mauell GmbH Werk Weida

Any MAC address starting D0:F7:3B is registered to Helmut Mauell GmbH Werk Weida in DE.

OUI prefix	D0F73B
Vendor	Helmut Mauell GmbH Werk Weida
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	D0:F7:3B:00:00:00

What this means

The IEEE assigned the MA-L block D0F73B to Helmut Mauell GmbH Werk Weida. 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 D0:F7:3B, it is Helmut Mauell GmbH Werk Weida hardware.

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