Beijing Rongcheng Hutong Technology Co., Ltd.

Any device whose MAC address begins with DC:CF:94 has a network interface built by Beijing Rongcheng Hutong Technology 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

DC:CF:94

Organization

Beijing Rongcheng Hutong Technology Co., Ltd.

Address

Room 401A,Building No.4,Yard No.5, Beijing CN 100024

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.