What this means
The IEEE assigned the MA-L block 646A74 to AUTH-SERVERS, LLC. 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 64:6A:74, it is AUTH-SERVERS, LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 646A74?
646A74 is registered to AUTH-SERVERS, LLC 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. AUTH-SERVERS, LLC's block covers 16,777,216 addresses.
What devices use 646A74?
Any network device with a MAC address starting 64:6A:74 was manufactured by or for AUTH-SERVERS, LLC.