DC Security Products

Any device whose MAC address begins with 00:09:D7 has a network interface built by DC Security Products. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:09:D7

Organization

DC Security Products

Address

One Lindsay Circle San Francisco California US 94124

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.