Nothing Technology Limited

Any device whose MAC address begins with 04:5A:3D has a network interface built by Nothing Technology 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

04:5A:3D

Organization

Nothing Technology Limited

Address

11 Staple Inn London London GB WC1V 7QH

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.