Who owns MAC prefix 905F8D?

905F8D is registered to modas GmbH in the IEEE MA-L registry.

What devices use 905F8D?

Any network device with a MAC address starting 90:5F:8D was manufactured by or for modas GmbH.

MA-L · OUI prefix

modas GmbH

Any MAC address starting 90:5F:8D is registered to modas GmbH in DE.

OUI prefix	905F8D
Vendor	modas GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	90:5F:8D:00:00:00

What this means

The IEEE assigned the MA-L block 905F8D to modas 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 90:5F:8D, it is modas GmbH hardware.

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