UK’S NO.1 NETWORK 6 YEARS IN A ROW: Rankings based on the RootMetrics® UK RootScore® Report: From H2 2013 to H1 2019. Tested with best commercially available smartphones on 4 national mobile networks across all available network types. Your experiences may vary. The RootMetrics award is not an endorsement of EE. Visit ROOTMETRICS.CO.UK for more details.