What this means
The IEEE assigned the MA-L block C419EC to Qualisys 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 C4:19:EC, it is Qualisys AB hardware.
Frequently Asked Questions
Who owns MAC prefix C419EC?
C419EC is registered to Qualisys 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. Qualisys AB's block covers 16,777,216 addresses.
What devices use C419EC?
Any network device with a MAC address starting C4:19:EC was manufactured by or for Qualisys AB.