O2, a leading UK network provider, has issued a crucial warning to users of older phones still on its network. The company, now part of Virgin Media, is set to completely shut down its 3G signal this year, following similar moves by other major telecom firms like EE and Vodafone. This means individuals who have not upgraded to a 4G or 5G device will lose access to online services and apps like WhatsApp once the 3G network is deactivated.
According to O2, there may be some residual 3G signal in certain areas in early 2026, but eventually, the network will be entirely switched off. Jeanie York, Chief Technology Officer at Virgin Media O2, emphasized the increasing obsolescence of 3G networks in light of the rapid advancements in 4G and 5G technologies.
While O2 assures that only a small percentage of users will be affected, those still using 3G devices are advised to upgrade promptly to avoid disruptions. Although voice calls and text messages will remain functional post-3G shutdown, mobile data services will cease for non-upgraded devices.
The decision to phase out 3G is driven by the network’s inability to meet modern demands, with 3G speeds significantly lagging behind 4G and 5G capabilities. By discontinuing 3G, more bandwidth will be allocated to enhance 4G and 5G services, providing customers with faster data speeds, improved streaming quality, and more reliable voice calls.
York further explained that the 3G network now accounts for less than 2% of mobile data usage, prompting the industry and government to reallocate spectrum for advanced services. This strategic move aims to offer customers an enhanced overall experience with state-of-the-art technologies.
