ANDOVER CONTROLS CORPORATION

Any device whose MAC address begins with 00:40:11 has a network interface built by ANDOVER CONTROLS 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

00:40:11

Organization

ANDOVER CONTROLS CORPORATION

Address

300 BRICKSTONE SQUARE ANDOVER MA US 01810

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.