Tianjin Hualai Technology Co., Ltd

Any device whose MAC address begins with E4:AA:EC has a network interface built by Tianjin Hualai 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

E4:AA:EC

Organization

Tianjin Hualai Technology Co., Ltd

Address

Overseas Chinese business building No. 10, Jinping Road, Nankai District, Tianjin TIANJIN CN 300190

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.