GWD Media Limited

Any device whose MAC address begins with 00:21:95 has a network interface built by GWD Media 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

00:21:95

Organization

GWD Media Limited

Address

10 Leeds Road Sheffield South Yorkshire GB S9 3TY

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.