What this means
The IEEE assigned the MA-L block 542097 to TTTech Auto AG. 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 54:20:97, it is TTTech Auto AG hardware.
Frequently Asked Questions
Who owns MAC prefix 542097?
542097 is registered to TTTech Auto AG 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. TTTech Auto AG's block covers 16,777,216 addresses.
What devices use 542097?
Any network device with a MAC address starting 54:20:97 was manufactured by or for TTTech Auto AG.