Qinghai Kimascend Electronics Technology Co. Ltd.

Any device whose MAC address begins with EC:5F:23 has a network interface built by Qinghai Kimascend Electronics 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

EC:5F:23

Organization

Qinghai Kimascend Electronics Technology Co. Ltd.

Address

2F,Building 6,J6 Science&Tech Park, No.6 Jiangjun Rd., Jiangning District Nanjing Jiangsu CN 211100

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.