Tecvan Informatica Ltda

Any device whose MAC address begins with 00:1D:5B has a network interface built by Tecvan Informatica Ltda. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1D:5B

Organization

Tecvan Informatica Ltda

Address

Rua Guaicurus, 145 Diadema São Paulo BR 09911-630

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.