STMicroelectronics Rousset SAS

Any device whose MAC address begins with 40:82:7B has a network interface built by STMicroelectronics Rousset SAS. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

40:82:7B

Organization

STMicroelectronics Rousset SAS

Address

776 rue Albert Caquot Biot Select State FR 06410

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.