What this means
The IEEE assigned the MA-L block 141AAA to Metal Work SpA. 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 14:1A:AA, it is Metal Work SpA hardware.
Frequently Asked Questions
Who owns MAC prefix 141AAA?
141AAA is registered to Metal Work SpA 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. Metal Work SpA's block covers 16,777,216 addresses.
What devices use 141AAA?
Any network device with a MAC address starting 14:1A:AA was manufactured by or for Metal Work SpA.