Emtronix

Any device whose MAC address begins with D0:9B:05 has a network interface built by Emtronix. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

D0:9B:05

Organization

Emtronix

Address

5# Gaopeng Dadao Chengdu CN 610041

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.