AMERICAN TECHNOLOGY LABS, INC.

Any device whose MAC address begins with 00:A0:43 has a network interface built by AMERICAN TECHNOLOGY LABS, 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:A0:43

Organization

AMERICAN TECHNOLOGY LABS, INC.

Address

115 WEST 3RD STREET STEVENSVILLE MT US 59870

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.