Ulak Communications Inc.

Any device whose MAC address begins with 34:C1:E9 has a network interface built by Ulak Communications 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

34:C1:E9

Organization

Ulak Communications Inc.

Address

Mustafa Kemal District, Martyr Teacher Senay Aybuke Yalcin Street, 2120. St. No:13/A ANKARA TR 06530

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.