Jiangsu Yuwell POCTech Biotechnology Co.,Ltd

Any device whose MAC address begins with D8:91:1D has a network interface built by Jiangsu Yuwell POCTech Biotechnology 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

D8:91:1D

Organization

Jiangsu Yuwell POCTech Biotechnology Co.,Ltd

Address

No.5 Baisheng Road Development Zone, 212300 Danyang, Jiangsu, PEOPLE’S REPUBLIC OF CHINA Danyang CN 212300

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.