TRI-DATA

Any device whose MAC address begins with 00:00:BB has a network interface built by TRI-DATA. 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:BB

Organization

TRI-DATA

Address

505 EAST MIDDLEFIELD ROAD MOUNTAIN VIEW CA US 94043-4082

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.