Who owns MAC prefix 78392DE?

78392DE is registered to Planeta Informática Ltda in the IEEE MA-M registry.

What devices use 78392DE?

Any network device with a MAC address starting 78:39:2D:E was manufactured by or for Planeta Informática Ltda.

MA-M · OUI prefix

Planeta Informática Ltda

Any MAC address starting 78:39:2D:E is registered to Planeta Informática Ltda in BR.

OUI prefix	78392DE
Vendor	Planeta Informática Ltda
Registry	MA-M (28-bit, medium block)
Country	BR
Example MAC	78:39:2D:E:00:00:00

What this means

The IEEE assigned the MA-M block 78392DE to Planeta Informática Ltda. 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 78:39:2D:E, it is Planeta Informática Ltda hardware.

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