Intelligent Steward Co.,Ltd

Any device whose MAC address begins with 9C:DD:1F has a network interface built by Intelligent Steward 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:DD:1F

Organization

Intelligent Steward Co.,Ltd

Address

Room 508-598 XiTianGeZhuang Town Government Office Building,8# XiTong Road ,Economic Development District ,MiYun County ,BeiJing City BeiJing City CN 101509

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.