August Home, Inc.

Any device whose MAC address begins with 78:9C:85 has a network interface built by August Home, 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

78:9C:85

Organization

August Home, Inc.

Address

657 Bryant Street San Francisco California US 94107

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.