What this means
The IEEE assigned the MA-M block C482721 to Private. 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 C4:82:72:1, it is Private hardware.
Frequently Asked Questions
Who owns MAC prefix C482721?
C482721 is registered to Private 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. Private's block covers 1,048,576 addresses.
What devices use C482721?
Any network device with a MAC address starting C4:82:72:1 was manufactured by or for Private.