NEC DO BRASIL S.A.

Any device whose MAC address begins with 00:90:75 has a network interface built by NEC DO BRASIL 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

00:90:75

Organization

NEC DO BRASIL S.A.

Address

RODOVIA PRESIDENTE DUTRA, KM 218 São Paulo-SP CEP - 07210-902 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.