Scientific Atlanta, Inc

Any device whose MAC address begins with 00:0F:21 has a network interface built by Scientific Atlanta, 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

00:0F:21

Organization

Scientific Atlanta, Inc

Address

5030 Sugarloaf Parkway Lawrenceville Ga US 30042

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.