Premier-D LLC

Any device whose MAC address begins with 64:C7:F1 has a network interface built by Premier-D LLC. 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:C7:F1

Organization

Premier-D LLC

Address

SHABOLOVKA STREET, 19, ROOM. 1/1 Moscow RU 119049

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.