The PSTN Switch-Off Arrives on 31 January 2027 With 1.5 Million Lines Still Analogue
The UK retires its analogue phone network on 31 January 2027. Openreach said in July 2026 that 1.5 million lines had yet to migrate, including roughly 350,000 business premises. This piece traces how the date moved from December 2025, what stops working (voice, ISDN, ADSL and WLR-based FTTC, plus lift lines, alarm signalling, telecare, door entry, card terminals and franking machines), how to audit a line estate, the migration options (hosted VoIP, SIP trunks, SOGEA, full fibre, mobile signalling), the protections for telecare users, sector-by-sector exposure for hospitality, property, care and retail, and a dated checklist for the months before the deadline.