O2 has issued a warning that upcoming changes to its network could impact internet and messaging apps like WhatsApp for some users. The network, now a part of Virgin Media, is phasing out its older 3G technology in various UK regions. Locations such as Durham, Norwich, Telford, Guildford, Watford, and Torquay have already had their O2 3G signal discontinued, with parts of Scotland next in line.
Starting November 5, 2025, individuals with devices solely reliant on 3G will lose access to data services. This means no more sending emails, reading WhatsApp messages, or browsing websites without Wi-Fi. Basic phone calls and SMS texts will remain functional, but data services will be unavailable.
Residents in eastern areas such as Aberdeen and Dundee will experience the 3G shutdown first. By the end of 2025, O2 aims to complete the 3G switch-off across the entire UK.
The decision to phase out 3G is due to its outdated nature, originally introduced in 2003. The technology is costly to maintain and consumes valuable bandwidth that could be utilized for more efficient 4G and 5G signals. While 3G can only deliver speeds up to 3Mbps, 4G and 5G can achieve speeds up to 100Mbps, making them more suitable for modern demands.
The impact of this transition is expected to affect a small number of users, as most people now possess 4G and 5G-compatible devices. O2 is offering free 4G-ready devices to some 3G customers and discounted upgrades for those without a 4G handset or SIM card. Other providers like EE and Vodafone have already ceased 3G services to enhance network capacity.
Jeanie York, Chief Technology Officer at Virgin Media O2, emphasized the shift towards faster and more reliable 4G and 5G networks to enhance customer experiences. Direct communication will be provided to affected individuals, especially in Scotland, to guide them through the necessary steps for upgrading to compatible devices. Regardless of location, customers relying on 3G are advised to upgrade promptly to ensure continued mobile data access post the 3G shutdown.