SPG Controls

Any device whose MAC address begins with 00:D3:18 has a network interface built by SPG Controls. 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:D3:18

Organization

SPG Controls

Address

Blue gates business park Stortford road Dunmow Essex GB CM61SN

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.