What this means
The IEEE assigned the MA-M block EC9F0D9 to FCI. 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 EC:9F:0D:9, it is FCI hardware.
Frequently Asked Questions
Who owns MAC prefix EC9F0D9?
EC9F0D9 is registered to FCI 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. FCI's block covers 1,048,576 addresses.
What devices use EC9F0D9?
Any network device with a MAC address starting EC:9F:0D:9 was manufactured by or for FCI.