Chongqing Guohong Technology Development Company Limited

Any device whose MAC address begins with 58:4C:19 has a network interface built by Chongqing Guohong Technology Development Company Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

58:4C:19

Organization

Chongqing Guohong Technology Development Company Limited

Address

Rongzhi Building, Science & Technology Venture Center, Chongqing CN 401336

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.