Siconix Inc.

Any device whose MAC address begins with C4:3A:9F has a network interface built by Siconix 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

C4:3A:9F

Organization

Siconix Inc.

Address

#28, 2333 18th Ave NE Calgary Alberta CA T2E 8T6

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.