What this means
The IEEE assigned the MA-M block 4048FD1 to Fast Programming. 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 40:48:FD:1, it is Fast Programming hardware.
Frequently Asked Questions
Who owns MAC prefix 4048FD1?
4048FD1 is registered to Fast Programming 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. Fast Programming's block covers 1,048,576 addresses.
What devices use 4048FD1?
Any network device with a MAC address starting 40:48:FD:1 was manufactured by or for Fast Programming.