General Dynamics United Kingdom Ltd

Any device whose MAC address begins with 00:14:B4 has a network interface built by General Dynamics United Kingdom 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

00:14:B4

Organization

General Dynamics United Kingdom Ltd

Address

Castleham Road St Leonards on Sea East Sussex GB TN38 9NJ

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.