SFA, INC.

Any device whose MAC address begins with 00:20:07 has a network interface built by SFA, INC.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:20:07

Organization

SFA, INC.

Address

1401 MCCORMICK DRIVE LANDOVER MD US 20785

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.