ONYX WIFI Inc

Any device whose MAC address begins with EC:A5:DE has a network interface built by ONYX WIFI 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

EC:A5:DE

Organization

ONYX WIFI Inc

Address

9891 Irvine Center Drive, Suite 200 Irvine US 92618

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.