AMPAK Technology, Inc.

Any device whose MAC address begins with 6C:21:A2 has a network interface built by AMPAK Technology, Inc.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

6C:21:A2

Organization

AMPAK Technology, Inc.

Address

No.1,Jen Ai Road Hsinchu Industrial Park, Hukou Hsinchu Taiwan ROC. TW 30352

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.