Nanjing Xinlian Electronics Co., Ltd

Any device whose MAC address begins with E4:51:A9 has a network interface built by Nanjing Xinlian Electronics 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

E4:51:A9

Organization

Nanjing Xinlian Electronics Co., Ltd

Address

No. 28, Jiayuan Middle Road, Jiangning District, Nanjing, Jiangsu Province, China Nanjing Jiangsu CN 211111

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.