Hangzhou Huacheng Network Technology Co.,Ltd

Any device whose MAC address begins with AC:3D:FA has a network interface built by Hangzhou Huacheng Network 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

AC:3D:FA

Organization

Hangzhou Huacheng Network Technology Co.,Ltd

Address

13th Floor, Building 3, No. 582, Liye Road, Changhe Street, Binjiang District, Hangzhou, China (Zhejiang) Pilot Free Trade Zone Hangzhou CN 311200

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.