Prama India Private Limited

Any device whose MAC address begins with E4:28:A4 has a network interface built by Prama India Private Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

E4:28:A4

Organization

Prama India Private Limited

Address

Off 103, 765 Fly Edge, TPS III Jn of S V Rd, Nr Kora Kendra Borivali West, Mumbai Maharashtra IN 400092

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.