A-One Co., Ltd.

Any device whose MAC address begins with 00:03:82 has a network interface built by A-One Co., Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:03:82

Organization

A-One Co., Ltd.

Address

6-9-20, Shimoichiba-cho, JP

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.