Co-Comm Servicios Telecomunicaciones S.L.

Any device whose MAC address begins with CC:C5:EF has a network interface built by Co-Comm Servicios Telecomunicaciones S.L.. 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:C5:EF

Organization

Co-Comm Servicios Telecomunicaciones S.L.

Address

Lisboa, 20 Las Rozas Madrid Madrid ES 28232

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.