What this means
The IEEE assigned the MA-M block 50FACBB to Combined Public Communications, LLC. 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 50:FA:CB:B, it is Combined Public Communications, LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 50FACBB?
50FACBB is registered to Combined Public Communications, LLC 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. Combined Public Communications, LLC's block covers 1,048,576 addresses.
What devices use 50FACBB?
Any network device with a MAC address starting 50:FA:CB:B was manufactured by or for Combined Public Communications, LLC.