Yangtze Memory Technologies Co., Ltd.

Any device whose MAC address begins with A4:28:B7 has a network interface built by Yangtze Memory 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

A4:28:B7

Organization

Yangtze Memory Technologies Co., Ltd.

Address

No.88 Weilai 3rd Road, East Lake High-tech Development Zone, Wuhan, Hubei, POC Wuhan Hubei CN 430078

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.