Objetivos y Servicios de Valor A

Any device whose MAC address begins with E4:C1:46 has a network interface built by Objetivos y Servicios de Valor A. 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:C1:46

Organization

Objetivos y Servicios de Valor A

Address

C/ Monte Esquinza, 28, 1D Madrid ES 28017

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.