What this means
The IEEE assigned the MA-L block 00129D to First International Computer do Brasil. 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 00:12:9D, it is First International Computer do Brasil hardware.
Frequently Asked Questions
Who owns MAC prefix 00129D?
00129D is registered to First International Computer do Brasil 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. First International Computer do Brasil's block covers 16,777,216 addresses.
What devices use 00129D?
Any network device with a MAC address starting 00:12:9D was manufactured by or for First International Computer do Brasil.