What this means
The IEEE assigned the MA-M block E44CC71 to ACS-Solutions 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 E4:4C:C7:1, it is ACS-Solutions GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix E44CC71?
E44CC71 is registered to ACS-Solutions 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. ACS-Solutions GmbH's block covers 1,048,576 addresses.
What devices use E44CC71?
Any network device with a MAC address starting E4:4C:C7:1 was manufactured by or for ACS-Solutions GmbH.