Padtec S/A

Any device whose MAC address begins with 00:21:13 has a network interface built by Padtec 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

00:21:13

Organization

Padtec S/A

Address

Road Campinas Mogi-Mirim km 118,5 Campinas São Paulo BR 13086-902

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.