HUAWEI TECHNOLOGIES CO.,LTD

Any device whose MAC address begins with 28:5F:DB has a network interface built by HUAWEI 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

28:5F:DB

Organization

HUAWEI TECHNOLOGIES CO.,LTD

Address

Building 17,Nangang Industrial Park, Tangtou 3nd Industrial Estate,Shiyan Baoan District, Shenzhen Guangdong CN 518108

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.