What this means
The IEEE assigned the MA-L block D44F80 to Kemper Digital 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 D4:4F:80, it is Kemper Digital GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix D44F80?
D44F80 is registered to Kemper Digital GmbH in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Kemper Digital GmbH's block covers 16,777,216 addresses.
What devices use D44F80?
Any network device with a MAC address starting D4:4F:80 was manufactured by or for Kemper Digital GmbH.