What this means
The IEEE assigned the MA-S block 8C1F6489A to National Control Devices, 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 8C:1F:64:89:A, it is National Control Devices, LLC hardware.
Frequently Asked Questions
Who owns MAC prefix 8C1F6489A?
8C1F6489A is registered to National Control Devices, LLC in the IEEE MA-S registry.
What does the MA-S registry type mean?
An MA-S assignment, formerly called OUI-36, covers 36 bits, giving the vendor 4,096 device addresses, the smallest block the IEEE issues. National Control Devices, LLC's block covers 4,096 addresses.
What devices use 8C1F6489A?
Any network device with a MAC address starting 8C:1F:64:89:A was manufactured by or for National Control Devices, LLC.