ONE Investment Group Limited

Any device whose MAC address begins with 00:0C:EF has a network interface built by ONE Investment Group 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

00:0C:EF

Organization

ONE Investment Group Limited

Address

Unit 6 Chelmsford Road Industrial Estate, Chelmsford Road, Great Dunmow Essex GB CM6 1HD

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.