AT & T Laboratories - Cambridge Ltd

Any device whose MAC address begins with 00:06:DD has a network interface built by AT & T Laboratories - Cambridge 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

00:06:DD

Organization

AT & T Laboratories - Cambridge Ltd

Address

24a Trumpington Street ENGLAND GB

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.