Clourney Semiconductor

Any device whose MAC address begins with D0:44:33 has a network interface built by Clourney Semiconductor. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

D0:44:33

Organization

Clourney Semiconductor

Address

Floor 6, Building 8, 2777 Nong, Jinxiu East Road, Pudong Dist. Shanghai Shanghai CN 201206

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.