Apption Labs Ltd

Any device whose MAC address begins with 90:21:2E has a network interface built by Apption Labs 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

90:21:2E

Organization

Apption Labs Ltd

Address

66 Commercial Square Leicester Leicestershire GB LE2 7SR

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.