Sirius XM Radio Inc

Any device whose MAC address begins with 28:AF:0A has a network interface built by Sirius XM Radio 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

28:AF:0A

Organization

Sirius XM Radio Inc

Address

1221 Avenue of the Americas New York NY US 10020

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.