MakerBot Industries

Any device whose MAC address begins with 3C:70:59 has a network interface built by MakerBot 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

3C:70:59

Organization

MakerBot Industries

Address

87 3rd Avenue Brooklyn NY US 11217

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.