Universal Telecom S/A

Any device whose MAC address begins with 00:22:40 has a network interface built by Universal Telecom S/A. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:22:40

Organization

Universal Telecom S/A

Address

Avenida Paulista, 2444 - 17 andar São Paulo BR 01310-300

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.