Tellink Sistemas de Telecomunicación S.L.

Any device whose MAC address begins with 00:1B:F5 has a network interface built by Tellink Sistemas de Telecomunicación S.L.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1B:F5

Organization

Tellink Sistemas de Telecomunicación S.L.

Address

C/ María Tubau Nº 5 Bajo B Madrid ES 28050

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.