silicon valley immigration service

Any device whose MAC address begins with 28:84:0E has a network interface built by silicon valley immigration service. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

28:84:0E

Organization

silicon valley immigration service

Address

1410 Sharp Ave, Campbell CA US 95008

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.