Major networks in the UK are beginning to phase-out their 3G services, which may have an impact on those who have stayed true to older devices.
It is being switched off to make room for a broader 5G network, as more people are getting devices that support the speedier services. The UK government has set a deadline of 2033 to phase out the older services, but most will have already scrapped 3G by 2025.
This will not affect most people who use smartphones, however if you have been using an older mobile phone which uses 3G, you may become unable to use mobile data.