VPI Engineering

Any device whose MAC address begins with 34:99:6F has a network interface built by VPI Engineering. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

34:99:6F

Organization

VPI Engineering

Address

11814 S. Election Rd., Suite 200 Draper UT US 84020

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.