Eintechno Corporation

Any device whose MAC address begins with 2C:91:27 has a network interface built by Eintechno Corporation. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

2C:91:27

Organization

Eintechno Corporation

Address

3359-1, kako, Inami-cho kako-gun hyogo JP 675-1105

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.