Charles Industries

Any device whose MAC address begins with 00:03:02 has a network interface built by Charles Industries. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:03:02

Organization

Charles Industries

Address

5600 Apollo Drive Rolling Meadows IL US 60008

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.