Tokyo Aircaft Instrument Co., Ltd.

Any device whose MAC address begins with 00:12:50 has a network interface built by Tokyo Aircaft Instrument 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

00:12:50

Organization

Tokyo Aircaft Instrument Co., Ltd.

Address

1-35-1, Izumi-Honcho Komae-Shi Tokyo JP 201-8555

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.