Chiun Mai Communication System, Inc

Any device whose MAC address begins with CC:9F:7A has a network interface built by Chiun Mai Communication System, 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

CC:9F:7A

Organization

Chiun Mai Communication System, Inc

Address

No.4, Minsheng St., Tucheng District New Taipei City TW 23678

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.