What this means
The IEEE assigned the MA-M block E03C1C3 to Dewetron 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 E0:3C:1C:3, it is Dewetron GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix E03C1C3?
E03C1C3 is registered to Dewetron GmbH in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Dewetron GmbH's block covers 1,048,576 addresses.
What devices use E03C1C3?
Any network device with a MAC address starting E0:3C:1C:3 was manufactured by or for Dewetron GmbH.