InView Technology Corporation

Any device whose MAC address begins with D4:A4:99 has a network interface built by InView Technology Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

D4:A4:99

Organization

InView Technology Corporation

Address

8900 Shoal Creek Blvd Austin TX US 78757

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.