Marquardt India Pvt Ltd

Any device whose MAC address begins with 78:A4:BA has a network interface built by Marquardt India Pvt Ltd. 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:A4:BA

Organization

Marquardt India Pvt Ltd

Address

Plot No.21/3, Rajiv Gandhi Infotech Park (SEZ),Hinjewadi phase 3, “Hinjewadi – Maan”, Village –Maan, Taluka – Mulshi, Dist. - Pune, Pune Maharashtra IN 411057

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.