Hangzhou System Technology CO., LTD

Any device whose MAC address begins with 00:1D:A4 has a network interface built by Hangzhou System 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

00:1D:A4

Organization

Hangzhou System Technology CO., LTD

Address

ROOM A1505 HuaXing times plaza,NO 478 Wensan Road Hangzhou Zhejiang CN 310012

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.