Who owns MAC prefix 90F4C1?

90F4C1 is registered to Rand McNally in the IEEE MA-L registry.

What devices use 90F4C1?

Any network device with a MAC address starting 90:F4:C1 was manufactured by or for Rand McNally.

MA-L · OUI prefix

Rand McNally

Any MAC address starting 90:F4:C1 is registered to Rand McNally in US.

OUI prefix	90F4C1
Vendor	Rand McNally
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	90:F4:C1:00:00:00

What this means

The IEEE assigned the MA-L block 90F4C1 to Rand McNally. 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 90:F4:C1, it is Rand McNally hardware.

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