Network Critical Solutions Ltd

Any device whose MAC address begins with 00:1D:FF has a network interface built by Network Critical Solutions 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

00:1D:FF

Organization

Network Critical Solutions Ltd

Address

12B Southview Park Reading Berkshire GB RG45AF

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.