A PLUS INFO CORPORATION

Any device whose MAC address begins with 00:40:08 has a network interface built by A PLUS INFO 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

00:40:08

Organization

A PLUS INFO CORPORATION

Address

5F, NO.2, LANE 235 TAIWAN TAIWAN TW R.O.C.

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.