Preparing for 2G switch-off - devices using international roaming SIMs: 2G Network Coverage Data and predicted new ‘2G Inbound Roaming Not-Spots’
Published: 17 April 2025
List of postcodes containing premises where international roaming SIMs are predicted to lose 2G indoor coverage once Virgin Media O2 (O2) restricts inbound roaming on its 2G network, as O2 is the only MNO providing 2G coverage at these locations.
Switching off 2G and 3G and 2G networks: advice for IoT and third-party device suppliers
Published: 22 January 2024
Last updated: 17 April 2025
The UK’s mobile network providers will switch off their 3G and then 2G networks over the next few years. This page explains how suppliers of Internet of Things (IoT) and third-party devices can help their customers during this period of change.
Nations reports 2024
Published: 5 December 2024
Last updated: 15 April 2025
These reports examine the availability of broadband and mobile services in each of the UK's nations.
Codes of practice
Published: 28 April 2010
Last updated: 7 April 2025
This section is dedicated to information and research for the telecoms industry, including codes of practice.
Connected Nations update: Spring 2024
Published: 24 April 2024
Last updated: 28 March 2025
The first interim update to Connected Nations 2022, based on mobile coverage and fixed broadband availability across the UK as of January 2023.
Data downloads
Published: 2 January 2024
Last updated: 28 March 2025
We have made some of the data that underpins the Connected Nations 2023 report available to download. This data allows us to make year-on-year comparisons of the state of the UK’s communications infrastructure.
Data downloads 2024
Published: 5 December 2024
Last updated: 28 March 2025
We have made some of the data that underpins the Connected Nations 2024 report available to download. This data allows us to make year-on-year comparisons of the state of the UK’s communications infrastructure.
Drive route map
Published: 30 May 2023
Last updated: 7 March 2025
Alongside our 4G- and 5G-specific signal strength measurement data, we have published a map showing the routes our spectrum assurance vehicles have taken along roads in the United Kingdom.
Mobile signal strength measurement data from our spectrum assurance vehicles
Published: 7 March 2024
Last updated: 7 March 2025
We have been compiling the 4G- and 5G-specific signal strength measurement data that our spectrum assurance vehicles capture along roads in England, Scotland and Wales.
Using a repeater to improve your indoor mobile phone signal
Published: 15 December 2023
Last updated: 25 February 2025
Poor or no indoor mobile signal? A repeater could help you get better coverage.