NECMagnusCommunications

Any device whose MAC address begins with CC:B6:91 has a network interface built by NECMagnusCommunications. 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:B6:91

Organization

NECMagnusCommunications

Address

4-28 MITA 1Chome Minato-ku Tokyo JP 108-0073

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.