O2 network users with older phones are urged to upgrade soon as the provider will be shutting down its 3G signal later this year. This decision aligns with similar moves by other companies like EE and Vodafone. Failure to upgrade may result in loss of access to online services and apps such as WhatsApp when outside Wi-Fi coverage.
O2 confirmed that the 3G network will be fully deactivated in the near future, although some areas may still briefly display a 3G signal in early 2026. The shift to 4G and 5G technologies will render 3G devices obsolete for web browsing and certain applications.
Virgin Media O2’s Chief Technology Officer, Jeanie York, highlighted the industry’s focus on faster and more reliable networks like 4G and 5G, making 3G increasingly outdated. The company is nearing completion of its 3G shutdown program following successful trials in 2025.
O2 reassured that only a small segment of the population will be affected by the change, with notifications sent to 3G device users for upgrading options. Failing to switch to a newer phone with 4G or 5G capabilities before the 3G shutdown will result in the inability to use mobile data, although calls and texts can still be made.
The decision to phase out 3G is driven by its outdated speeds and limitations compared to 4G and 5G technologies. Discontinuing 3G will free up bandwidth for more efficient 4G and 5G services, providing users with better data speeds and enhanced connectivity.
Jeanie York further explained that the declining use of the 3G network, accounting for less than 2% of mobile data usage, led to the industry’s agreement to withdraw 3G networks and allocate spectrum to 4G and 5G services. This reallocation aims to enhance customer experience with faster speeds, improved streaming quality, and superior voice call performance.