STL Systems AG

Any device whose MAC address begins with EC:04:82 has a network interface built by STL Systems AG. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

EC:04:82

Organization

STL Systems AG

Address

Hauptstrasse 137E Taegerwilen CH 8274

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.