LEMCOM SYSTEMS, INC.

Any device whose MAC address begins with 00:40:69 has a network interface built by LEMCOM SYSTEMS, 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

00:40:69

Organization

LEMCOM SYSTEMS, INC.

Address

2104 WEST PEORIA AVENUE PHOENIX AZ US 85029

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.