Kessler Crane Inc.

Any device whose MAC address begins with 3C:57:BD has a network interface built by Kessler Crane 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

3C:57:BD

Organization

Kessler Crane Inc.

Address

602 East Jefferson St Plymouth Indidana US 46563

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.