MobileAria

Any device whose MAC address begins with 00:12:7D has a network interface built by MobileAria. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:12:7D

Organization

MobileAria

Address

800 W El Camino Real #240 Mountain View CA US 94040

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.