Topwise 3G Communication Co., Ltd.

Any device whose MAC address begins with CC:5F:BF has a network interface built by Topwise 3G Communication 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

CC:5F:BF

Organization

Topwise 3G Communication Co., Ltd.

Address

6 Floor, A8 Music Building, Keyuan Road, High-Tech Park, Nanshan District, Shenzhen, China Shenzhen Guangdong CN 518000

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.