Airsonics

Any device whose MAC address begins with 3C:78:73 has a network interface built by Airsonics. 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:78:73

Organization

Airsonics

Address

1289 Fordham Blvd. Chapel Hill NC US 27514

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.