Hefei Huanxin Microelectronics Technology Co., Ltd.

Any device whose MAC address begins with A0:1B:04 has a network interface built by Hefei Huanxin Microelectronics Technology 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

A0:1B:04

Organization

Hefei Huanxin Microelectronics Technology Co., Ltd.

Address

22nd Floor, Building A1, China Vision, No. 99 Longchuan Road, Baohe District, Hefei City, Anhui Province, China Hefei Anhui CN 230001

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.