Who owns MAC prefix 64C667?

64C667 is registered to Barnes&Noble in the IEEE MA-L registry.

What devices use 64C667?

Any network device with a MAC address starting 64:C6:67 was manufactured by or for Barnes&Noble.

MA-L · OUI prefix

Barnes&Noble

Any MAC address starting 64:C6:67 is registered to Barnes&Noble in US.

OUI prefix	64C667
Vendor	Barnes&Noble
Registry	MA-L (24-bit, large block)
Country	US
Example MAC	64:C6:67:00:00:00

What this means

The IEEE assigned the MA-L block 64C667 to Barnes&Noble. 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:C6:67, it is Barnes&Noble hardware.

Other Barnes&Noble prefixes

Barnes&Noble holds 2 registered blocks in total.

58671A

Look up another MAC