Who owns MAC prefix 000B41?

000B41 is registered to Ing. Büro Dr. Beutlhauser in the IEEE MA-L registry.

What devices use 000B41?

Any network device with a MAC address starting 00:0B:41 was manufactured by or for Ing. Büro Dr. Beutlhauser.

MA-L · OUI prefix

Ing. Büro Dr. Beutlhauser

Any MAC address starting 00:0B:41 is registered to Ing. Büro Dr. Beutlhauser in DE.

OUI prefix	000B41
Vendor	Ing. Büro Dr. Beutlhauser
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	00:0B:41:00:00:00

What this means

The IEEE assigned the MA-L block 000B41 to Ing. Büro Dr. Beutlhauser. 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 00:0B:41, it is Ing. Büro Dr. Beutlhauser hardware.

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