Who owns MAC prefix 204C6D?

204C6D is registered to Hugo Brennenstuhl Gmbh & Co. KG. in the IEEE MA-L registry.

What devices use 204C6D?

Any network device with a MAC address starting 20:4C:6D was manufactured by or for Hugo Brennenstuhl Gmbh & Co. KG..

MA-L · OUI prefix

Hugo Brennenstuhl Gmbh & Co. KG.

Any MAC address starting 20:4C:6D is registered to Hugo Brennenstuhl Gmbh & Co. KG. in DE.

OUI prefix	204C6D
Vendor	Hugo Brennenstuhl Gmbh & Co. KG.
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	20:4C:6D:00:00:00

What this means

The IEEE assigned the MA-L block 204C6D to Hugo Brennenstuhl Gmbh & Co. KG.. 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 20:4C:6D, it is Hugo Brennenstuhl Gmbh & Co. KG. hardware.

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