Tactrix Inc.

Any device whose MAC address begins with EC:35:32 has a network interface built by Tactrix Inc.. 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:35:32

Organization

Tactrix Inc.

Address

126 Russ St San Francisco CA US 94103

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.