What this means
The IEEE assigned the MA-L block D41F0C to JAI Manufacturing. 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 D4:1F:0C, it is JAI Manufacturing hardware.
Frequently Asked Questions
Who owns MAC prefix D41F0C?
D41F0C is registered to JAI Manufacturing in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. JAI Manufacturing's block covers 16,777,216 addresses.
What devices use D41F0C?
Any network device with a MAC address starting D4:1F:0C was manufactured by or for JAI Manufacturing.