Switching off the 3G network


The 3G network has now been withdrawn across the UK. You may still see a 3G signal in some places for a short period in early 2026, but the network will soon be switched off. If you’re still using a 3G-only handset, please visit a Phone Shop to upgrade as soon as possible.

It's quick and easy to find out whether you need to take any action using our 4G Calling checker using this link.

If you don’t have a 4G or 5G capable phone with 4G Calling (also known as VoLTE) enabled, you won’t be able to use mobile data.

There will be no impact to calling emergency services as these calls use the 2G network which will remain in service.


What do I need to do?

1. Check your phone

To stay connected, you’ll need to turn on 4G Calling (also known as VoLTE) in your settings. You can find out how to do this on our device page.

If your phone is not 4G or 5G compatible, you will need to change your device to use 4G Calling.

Below you’ll find a list of compatible 4G and 5G phones. If your phone is not on this list, please use our device guides to check if your phone supports 4G Calling. (4G Calling may be called something different on your phone. Please check our device guides for guidance.) 

2. Turn on 4G (VoLTE)

If you have a compatible 4G or 5G phone, you’ll need to turn on 4G Calling in your settings. This may be called something else depending on the make and model of your phone, as well as its operating system.

If the instructions don’t match your device, you may also need to complete a software update on your phone.

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Frequently asked questions

2G and 3G are the second and third generations of mobile phone networks. 2G was introduced in 1991 and enabled text messages and voice calls, while 3G was introduced in 2003 and enabled basic internet connectivity.

The government announced in December 2021 that it and the mobile industry had agreed to switch off 2G and 3G networks in the UK.

In line with the Government deadline to phase out 2G and 3G technology, every UK mobile network has committed to switching off their 3G network, and most have already completed their switch-off.

As technology evolves, we’re all relying more and more on fast, reliable data to stay connected. Switching off 3G will allow Virgin Media O2, whose network we share, to continue to invest in expanding 4G and 5G coverage, to make sure all communities have fast and reliable connectivity now and in the future.

The 2G network will continue to play an important role in connecting emergency calls and supporting connected devices like smart metres, but you’ll need to have 4G Calling compatible phone to avoid poor call quality.

If you have a 2G SIM card in your phone or any other device, you will need to swap this for a 4G SIM card.

If you do not have a compatible 4G or 5G phone, you will not be able to make calls on the 4G or 5G networks. 

3G has already been switched off in some countries. If you have a compatible 4G or 5G phone with 4G Calling turned on, there should not be any impact on your roaming experience. But if this is not the case, you may notice an impact on your roaming experience, so please check before you travel.

If you’ve read all the information above and you’re still not sure whether you need to do anything, you can get in touch with us via web chat or by popping in-store. One of our team will be happy to help.

If your phone is barred or on hold you will need to contact us for support. You can visit your local Phone Shop for more information

3G services have been switched off for all UK networks.  You need to upgrade to a 4G or 5G phone.

Yes, customers on a business contract will also need to have a 4G/5G enabled phone and the right SIM card.

If you’re experiencing this issue, please ensure your phone is updated to the latest software and try again.
If you continue to have this issue, it is likely that your device manufacturer no longer supports this model with software updates, or you may need to swap your SIM card.
If you’re unsure whether you’re impacted by this, bring your device into a Phone Shop and we’ll be able to help.