Guangzhou Juan Optical and Electronical Tech Joint Stock Co., Ltd

Any device whose MAC address begins with 9C:A3:A9 has a network interface built by Guangzhou Juan Optical and Electronical Tech Joint Stock 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

9C:A3:A9

Organization

Guangzhou Juan Optical and Electronical Tech Joint Stock Co., Ltd

Address

NO.9, street 3, HengLing industrial zone, Tangdong, tianhe district Guangzhou Guangdong CN 510000

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.