What this means
The IEEE assigned the MA-L block C0C3B6 to Automatic Systems. 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 C0:C3:B6, it is Automatic Systems hardware.
Frequently Asked Questions
Who owns MAC prefix C0C3B6?
C0C3B6 is registered to Automatic Systems 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. Automatic Systems's block covers 16,777,216 addresses.
What devices use C0C3B6?
Any network device with a MAC address starting C0:C3:B6 was manufactured by or for Automatic Systems.