Barnes&Noble

Any device whose MAC address begins with 64:C6:67 has a network interface built by Barnes&Noble. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

64:C6:67

Organization

Barnes&Noble

Address

400 Hamilton Avenue Palo Alto CA US 94301

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.