What this means
The IEEE assigned the MA-M block CCC261C to Nortek Security & Control. 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:C, it is Nortek Security & Control hardware.
Frequently Asked Questions
Who owns MAC prefix CCC261C?
CCC261C is registered to Nortek Security & Control 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. Nortek Security & Control's block covers 1,048,576 addresses.
What devices use CCC261C?
Any network device with a MAC address starting CC:C2:61:C was manufactured by or for Nortek Security & Control.