Telldus Technologies AB

Any device whose MAC address begins with AC:CA:54 has a network interface built by Telldus Technologies 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

AC:CA:54

Organization

Telldus Technologies AB

Address

Skiffervägen 102 Lund SE 224 78

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.