ACCTON TECHNOLOGY CORPORATION

Any device whose MAC address begins with 5C:40:97 has a network interface built by ACCTON TECHNOLOGY 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

5C:40:97

Organization

ACCTON TECHNOLOGY CORPORATION

Address

No.1, Creation Road 3, Hsinchu Science Park, Hsinchu TW 30077

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.