Effigis GeoSolutions

Any device whose MAC address begins with C0:81:70 has a network interface built by Effigis GeoSolutions. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

C0:81:70

Organization

Effigis GeoSolutions

Address

4101, rue Molson Montreal Quebec CA H1Y3L1

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.