Bigfoot Networks Inc

Any device whose MAC address begins with 00:19:03 has a network interface built by Bigfoot Networks Inc. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:19:03

Organization

Bigfoot Networks Inc

Address

3925 West Braker Lane Austin TX US 78759

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.