Who owns MAC prefix 443C9C?

443C9C is registered to Pintsch GmbH in the IEEE MA-L registry.

What devices use 443C9C?

Any network device with a MAC address starting 44:3C:9C was manufactured by or for Pintsch GmbH.

MA-L · OUI prefix

Pintsch GmbH

Any MAC address starting 44:3C:9C is registered to Pintsch GmbH in DE.

OUI prefix	443C9C
Vendor	Pintsch GmbH
Registry	MA-L (24-bit, large block)
Country	DE
Example MAC	44:3C:9C:00:00:00

What this means

The IEEE assigned the MA-L block 443C9C to Pintsch 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 44:3C:9C, it is Pintsch GmbH hardware.

Look up another MAC