Who owns MAC prefix F0007F?

F0007F is registered to Janz - Contadores de Energia, SA in the IEEE MA-L registry.

What devices use F0007F?

Any network device with a MAC address starting F0:00:7F was manufactured by or for Janz - Contadores de Energia, SA.

MA-L · OUI prefix

Janz - Contadores de Energia, SA

Any MAC address starting F0:00:7F is registered to Janz - Contadores de Energia, SA in PT.

OUI prefix	F0007F
Vendor	Janz - Contadores de Energia, SA
Registry	MA-L (24-bit, large block)
Country	PT
Example MAC	F0:00:7F:00:00:00

What this means

The IEEE assigned the MA-L block F0007F to Janz - Contadores de Energia, SA. 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 F0:00:7F, it is Janz - Contadores de Energia, SA hardware.

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