Who owns MAC prefix C419EC?

C419EC is registered to Qualisys AB in the IEEE MA-L registry.

What devices use C419EC?

Any network device with a MAC address starting C4:19:EC was manufactured by or for Qualisys AB.

MA-L · OUI prefix

Qualisys AB

Any MAC address starting C4:19:EC is registered to Qualisys AB in SE.

OUI prefix	C419EC
Vendor	Qualisys AB
Registry	MA-L (24-bit, large block)
Country	SE
Example MAC	C4:19:EC:00:00:00

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.

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