Diagraph Corporation

Any device whose MAC address begins with 00:06:B3 has a network interface built by Diagraph Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:06:B3

Organization

Diagraph Corporation

Address

3401 Rider Trail South Earth City MO US 63045-1110

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.