What this means
The IEEE assigned the MA-M block CCC2616 to Guardiar USA. 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 CC:C2:61:6, it is Guardiar USA hardware.
Frequently Asked Questions
Who owns MAC prefix CCC2616?
CCC2616 is registered to Guardiar USA in the IEEE MA-M registry.
What does the MA-M registry type mean?
An MA-M assignment covers 28 bits of the address, giving the vendor 1,048,576 device addresses, a quarter of a full MA-L block. Guardiar USA's block covers 1,048,576 addresses.
What devices use CCC2616?
Any network device with a MAC address starting CC:C2:61:6 was manufactured by or for Guardiar USA.