Silicon Graphics

Any device whose MAC address begins with 00:00:6B has a network interface built by Silicon Graphics. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:00:6B

Organization

Silicon Graphics

Address

2011 NORTH SHORELINE BLVD. MOUNTAIN VIEW CA US 94039-7311

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.