Openreach published stop-sell Tranche 25 on 27 July 2026, listing 112 further exchange areas for the copper-to-fibre switch (Openreach, via ISPreview, 27 Jul 2026).
Tranche 25 market resolves YES if Openreach publishes its next FTTP priority exchange stop-sell list by 10 August 2026; Openreach's official announcements and Openreach's published exchange list are the source of truth.
We looked at four big national technology switch-offs in Britain: the old phone network, 3G mobile, the copper stop and digital TV. Half of them ran to their first schedule. The ones done area by area mostly kept to time. The one with a single national date, the old phone network, moved by 13 months.