In Summer 2013, mobile phone operators rolled out new fourth-generation (4G) networks to provide customers with high speed wireless broadband. Where these services are broadcast on certain airwaves (the 800MHz band), they may interfere with Freeview reception*. A company, at800, was set up by the mobile operators to provide filters and other assistance to households where TV reception may be affected. For more information, visit at800 or call them on 0333 31 31 800 (Freephone 0808 13 13 800). *Existing 4G services from EE do not affect Freeview services as these operate in a different band.