Elektronik System i Umeå AB

Any device whose MAC address begins with A8:17:58 has a network interface built by Elektronik System i Umeå AB. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

A8:17:58

Organization

Elektronik System i Umeå AB

Address

Box 7978 Umeå Västerbotten SE 907 19

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.