ADTECH

Any device whose MAC address begins with 00:30:75 has a network interface built by ADTECH. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:30:75

Organization

ADTECH

Address

RUE DU VAL ST LAMBERT 191 / i SERAING BE 4100

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.