Talk-A-Phone Co.

Any device whose MAC address begins with DC:09:14 has a network interface built by Talk-A-Phone Co.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

DC:09:14

Organization

Talk-A-Phone Co.

Address

7530 N. Natchez Ave. Niles IL US 60714

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.