Who owns MAC prefix 00129D?

00129D is registered to First International Computer do Brasil in the IEEE MA-L registry.

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.

MA-L · OUI prefix

First International Computer do Brasil

Any MAC address starting 00:12:9D is registered to First International Computer do Brasil in BR.

OUI prefix	00129D
Vendor	First International Computer do Brasil
Registry	MA-L (24-bit, large block)
Country	BR
Example MAC	00:12:9D:00:00:00

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.

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