Cambridge Industries(Group) Co.,Ltd.

Any device whose MAC address begins with A8:58:40 has a network interface built by Cambridge Industries(Group) 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

A8:58:40

Organization

Cambridge Industries(Group) Co.,Ltd.

Address

5/F,Building 8, 2388 ChenHang Road, MinHang District shanghai CN 201114

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.