Who owns MAC prefix 645FFF?

645FFF is registered to Nicolet Neuro in the IEEE MA-L registry.

What devices use 645FFF?

Any network device with a MAC address starting 64:5F:FF was manufactured by or for Nicolet Neuro.

MA-L · OUI prefix

Nicolet Neuro

Any MAC address starting 64:5F:FF is registered to Nicolet Neuro in US.

OUI prefix	645FFF
Vendor	Nicolet Neuro
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	64:5F:FF:00:00:00

What this means

The IEEE assigned the MA-L block 645FFF to Nicolet Neuro. 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 64:5F:FF, it is Nicolet Neuro hardware.

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