What this means
The IEEE assigned the MA-M block 383A21A to Foresight Sports. 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 38:3A:21:A, it is Foresight Sports hardware.
Frequently Asked Questions
Who owns MAC prefix 383A21A?
383A21A is registered to Foresight Sports 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. Foresight Sports's block covers 1,048,576 addresses.
What devices use 383A21A?
Any network device with a MAC address starting 38:3A:21:A was manufactured by or for Foresight Sports.