What this means
The IEEE assigned the MA-L block 004083 to TDA INDUSTRIA DE PRODUTOS. 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 00:40:83, it is TDA INDUSTRIA DE PRODUTOS hardware.
Frequently Asked Questions
Who owns MAC prefix 004083?
004083 is registered to TDA INDUSTRIA DE PRODUTOS 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. TDA INDUSTRIA DE PRODUTOS's block covers 16,777,216 addresses.
What devices use 004083?
Any network device with a MAC address starting 00:40:83 was manufactured by or for TDA INDUSTRIA DE PRODUTOS.