CG Power Systems Ireland Limited

Any device whose MAC address begins with 00:12:76 has a network interface built by CG Power Systems Ireland Limited. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:12:76

Organization

CG Power Systems Ireland Limited

Address

Herbert House., Harmony Row, Dublin IE D2

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.