TOKYO COSMOS ELECTRIC CO.,LTD.

Any device whose MAC address begins with 14:15:7C has a network interface built by TOKYO COSMOS ELECTRIC CO.,LTD.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

14:15:7C

Organization

TOKYO COSMOS ELECTRIC CO.,LTD.

Address

2-268 Sobudai Zama Kanagawa JP 252-8550

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.