What this means
The IEEE assigned the MA-L block 408493 to Clavister AB. 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 40:84:93, it is Clavister AB hardware.
Frequently Asked Questions
Who owns MAC prefix 408493?
408493 is registered to Clavister AB 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. Clavister AB's block covers 16,777,216 addresses.
What devices use 408493?
Any network device with a MAC address starting 40:84:93 was manufactured by or for Clavister AB.