What this means
The IEEE assigned the MA-L block 2C91AB to AVM Audiovisuelles Marketing und Computersysteme 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 2C:91:AB, it is AVM Audiovisuelles Marketing und Computersysteme GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 2C91AB?
2C91AB is registered to AVM Audiovisuelles Marketing und Computersysteme 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. AVM Audiovisuelles Marketing und Computersysteme GmbH's block covers 16,777,216 addresses.
What devices use 2C91AB?
Any network device with a MAC address starting 2C:91:AB was manufactured by or for AVM Audiovisuelles Marketing und Computersysteme GmbH.