Precidata

Any device whose MAC address begins with 78:A6:83 has a network interface built by Precidata. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

78:A6:83

Organization

Precidata

Address

CP 672 2002 NE CH 2002

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.