Panasonic Electric Works Co., Ltd.

Any device whose MAC address begins with 00:50:40 has a network interface built by Panasonic Electric Works 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

00:50:40

Organization

Panasonic Electric Works Co., Ltd.

Address

Tsu-Factory, 1668, Fujikata Tsu-shi Mie-ken JP 514-8555

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.