Who owns MAC prefix F40046?

F40046 is registered to ON Semiconductor in the IEEE MA-L registry.

What devices use F40046?

Any network device with a MAC address starting F4:00:46 was manufactured by or for ON Semiconductor.

MA-L · OUI prefix

ON Semiconductor

Any MAC address starting F4:00:46 is registered to ON Semiconductor in US.

OUI prefix	F40046
Vendor	ON Semiconductor
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	F4:00:46:00:00:00

What this means

The IEEE assigned the MA-L block F40046 to ON Semiconductor. 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 F4:00:46, it is ON Semiconductor hardware.

Other ON Semiconductor prefixes

ON Semiconductor holds 2 registered blocks in total.

60C0BF

Look up another MAC