GRAND JUNCTION NETWORKS, INC.

Any device whose MAC address begins with 00:C0:1D has a network interface built by GRAND JUNCTION NETWORKS, INC.. 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:C0:1D

Organization

GRAND JUNCTION NETWORKS, INC.

Address

3101 WHIPPLE RD., #27 UNION CITY CA US 94587

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.