PROCOMP INDUSTRIA ELETRONICA

Any device whose MAC address begins with 00:40:91 has a network interface built by PROCOMP INDUSTRIA ELETRONICA. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:40:91

Organization

PROCOMP INDUSTRIA ELETRONICA

Address

AV. KENKITI SIMOMOTO, 767 BR

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.