IFTER Jerzy Taczalski

Any device whose MAC address begins with 9C:96:1B has a network interface built by IFTER Jerzy Taczalski. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

9C:96:1B

Organization

IFTER Jerzy Taczalski

Address

Wola Niemiecka 78C Niemce PL 21-025

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.