IGEN Tech Co., Ltd.

Any device whose MAC address begins with B4:89:70 has a network interface built by IGEN Tech 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

B4:89:70

Organization

IGEN Tech Co., Ltd.

Address

Building H4, China IoT International Innovation Park, No. 6, Jingxian Road, Wuxi, Jiangsu, P. R. China Wuxi Jiangsu CN 214000

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.