Shenzhen Hailingwei Electronics Co., Ltd.

Any device whose MAC address begins with AC:30:19 has a network interface built by Shenzhen Hailingwei 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

AC:30:19

Organization

Shenzhen Hailingwei Electronics Co., Ltd.

Address

2nd Floor, Building 9, Longwangmiao Industrial Zone, East District, Baishixia Community, Fuyong Street, Bao'an District, Shenzhen Shenzhen Guangdong CN 518000

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.