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

To ask the Secretary of State for Culture, Media and Sport, if she will make it her policy to ensure that mobile networks use all of the spectrum holdings available.

Efficient use of spectrum is both the Government's aim and a statutory objective for Ofcom in carrying out its spectrum duties. Long term non- or under- use of assigned spectrum by a licensee could be inefficient, depending on the likely alternative use.