cd3o

Any device whose MAC address begins with 00:0B:D3 has a network interface built by cd3o. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:0B:D3

Organization

cd3o

Address

402 W Broadway San Deigo CA US 92101

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.