Question to the Department for Digital, Culture, Media & Sport:

To ask the Secretary of State for Culture, Media and Sport, what information his Department holds on the number of customers who switched between mobile phone providers in each year for which data is available.

DCMS does not hold this information, however from Ofcom data we understand that there are around 83 million active mobile subscribers in the UK. This figure includes people who have mobile devices that are not telephones - such as tablet and laptop computers - but which use mobile telephone technology and contain SIMs

Ofcom figures indicate that the percentage of mobile subscribers switching service provider per year since 2010 is as follows:

9% in 2010

9% in 2011

9% in 2012

11% in 2013

7% in 2014