BT Mobile is a mobile virtual network operator (MVNO) provided by BT Consumer; a division of BT Group in the United Kingdom that was launched in March 2015. It uses the EE network via an MVNO agreement signed in March 2014 as well as using the spectrum BT won in the 2013 4G auction. EE is now owned by BT following a successful acquisition that was officially completed on 29 January 2016. BT Mobile operates alongside BT Business Mobile which is provided by the BT Business and Public Sector division. BT Mobile launched as a SIM-only service and had more than 400,000 customers as of 5 May 2016.