Apogee Electronics Corp.

Any device whose MAC address begins with 00:03:DB has a network interface built by Apogee Electronics Corp.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:03:DB

Organization

Apogee Electronics Corp.

Address

1715 Berkeley St. Santa Monica CA US 90405-3210

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.