Justone Technologies Co., Ltd.

Any device whose MAC address begins with EC:7C:74 has a network interface built by Justone Technologies 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:7C:74

Organization

Justone Technologies Co., Ltd.

Address

Tongguang Building F19, 12# South Agriculture Exhibition Center Road, Beijing CN 100125

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.