Ring LLC

Any device whose MAC address begins with CC:3B:FB has a network interface built by Ring LLC. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

CC:3B:FB

Organization

Ring LLC

Address

12515 Cerise Ave Hawthorne CA US 90250

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.