What this means
The IEEE assigned the MA-M block D8860B7 to Grünbeck Wasseraufbereitung 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 D8:86:0B:7, it is Grünbeck Wasseraufbereitung GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix D8860B7?
D8860B7 is registered to Grünbeck Wasseraufbereitung 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. Grünbeck Wasseraufbereitung GmbH's block covers 1,048,576 addresses.
What devices use D8860B7?
Any network device with a MAC address starting D8:86:0B:7 was manufactured by or for Grünbeck Wasseraufbereitung GmbH.