What this means
The IEEE assigned the MA-M block 28FD804 to Digital Signal Corp. 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 28:FD:80:4, it is Digital Signal Corp hardware.
Frequently Asked Questions
Who owns MAC prefix 28FD804?
28FD804 is registered to Digital Signal Corp 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. Digital Signal Corp's block covers 1,048,576 addresses.
What devices use 28FD804?
Any network device with a MAC address starting 28:FD:80:4 was manufactured by or for Digital Signal Corp.