Openreach confirms UK PSTN landline switch-off on January 31, 2027, with no extensions

Openreach rules out another delay

The UK's legacy telephone network will be switched off on January 31, 2027, and Openreach says the deadline will not be extended again. According to The Register, the infrastructure arm of BT Group circulated a letter this week to the communications providers that deliver services over its network, warning that any customers still on public switched telephone network (PSTN) connections risk disruption when the analog service is retired.

The switch-off has been in planning for close to a decade, and the deadline has already moved at least once. The Register reports that the government previously asked telecoms providers not to force vulnerable customers, including users of TeleCare monitoring systems, to migrate until fixes were in place. Openreach is now presenting the end of January 2027 as final.

More than phones are at stake

Many households have given up landline handsets entirely and rely on mobile phones, but a significant amount of equipment still depends on the analog network. The Register lists point-of-sale terminals, fire and security alarms, and personal care alarms used by elderly and vulnerable people among the systems that could be disrupted.

For home users who want to keep a landline, the change means plugging the phone into the back of a broadband router to access a Digital Voice service. Customers without a fiber connection will likely be moved to SOTAP for Analog, or Single Order Transitional Access Product, which The Register describes as equipment installed in the local telephone exchange so the existing phone line continues to work as before.

The retirement is part of a wider government scheme to shift the UK onto all-digital, high-speed networks built on fiber-optic infrastructure. The Register notes that the old service's dependence on copper cabling had become an obstacle to that plan.

Businesses warned against waiting

Openreach has also cautioned commercial customers that delaying migration risks significant disruption and unnecessary cost, in part because engineering support may become harder to secure as the deadline approaches. James Lilley, Openreach's Director of All-IP, told The Register that the straightforward migrations have largely been completed, and what remains are complex connections underpinning critical operations that require careful planning, supplier coordination and thorough testing. He urged businesses to audit their remaining analog services and agree a migration plan with their provider.

There is already financial pressure to move: The Register reports that Openreach raised its charges earlier this year for service providers and companies still operating legacy business lines, who are now paying roughly double the rental cost compared with last year.

Awareness remains low

Despite the scale of the change, The Register observes that public awareness of the imminent disconnection appears limited. Telecoms analyst Paolo Pescatore of PP Foresight argued that Openreach and the providers need a far more coordinated campaign that reaches customers directly, combining TV, billboard and newspaper advertising with a consistent message, supported by targeted letters, calls and door-to-door help for older and vulnerable people who need extra assistance. He added that providers must take responsibility for keeping people safely connected, particularly those who depend on a landline or a care alarm.

Caroline Abrahams, charity director at Age UK, said that with only three months to go, the switchover is entering a critical final phase. Most people have moved over without major problems, she told The Register, but nobody who relies on a landline or TeleCare should be left behind. She stressed that the responsibility cannot rest with customers alone, noting that some may be unwell, living with dementia, worried about scams or without anyone nearby to help, and that providers must keep trying to reach them with practical, individual support rather than giving up on non-responders.

Openreach has published guidance on the switch-off advising consumers to contact their service provider as soon as possible to avoid an interruption in service.

Why it matters

The PSTN retirement is one of the largest infrastructure deprecations the UK has undertaken, and it reaches far beyond the phone in the hallway. Analog lines quietly back payment terminals, burglar and fire alarms, and telecare devices that their owners may not realise depend on the copper network. With Openreach refusing to extend the deadline, the final months are about finding the stragglers — businesses with complex legacy systems and vulnerable households among them — before the network goes dark, and the burden of doing so is now an explicit point of dispute between the industry and consumer advocates.