Valentine Research, Inc.

Any device whose MAC address begins with 6C:9A:C9 has a network interface built by Valentine Research, Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

6C:9A:C9

Organization

Valentine Research, Inc.

Address

10280 Alliance Rd Cincinnati OH US 45242

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.