Tech4home, Lda

Any device whose MAC address begins with 80:F1:F1 has a network interface built by Tech4home, Lda. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

80:F1:F1

Organization

Tech4home, Lda

Address

Rua de Fundoes N151 Sao Joao da Madeira Aveiro PT 3700-121

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.