Fractal BMS

Any device whose MAC address begins with E4:56:CA has a network interface built by Fractal BMS. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

E4:56:CA

Organization

Fractal BMS

Address

8656 W Hwy 71 AUSTIN TX US 78735

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.