The way we connect is changing. Across the UK, our mobile networks are undergoing a significant transformation. The familiar 3G and 2G networks that have served us for years are being switched off to make way for faster, more reliable, and energy-efficient 4G and 5G services.

This change will affect everyone, from individuals with older phones to businesses relying on older technology for their operations. This guide will walk you through everything you need to know about the switch-off, why it’s happening, and what you need to do to stay connected.

Why is the Switch-Off Happening?

Think of it as a digital evolution. 3G, which launched in 2003, can no longer keep up with our modern-day data demands. From video calls to streaming services, our data consumption has skyrocketed, and 3G simply wasn’t built for it. By retiring these older networks, mobile providers can free up the radio waves (spectrum) and invest in expanding and improving the 4G and 5G networks that power our digital lives.

The 2G network, which dates back to the 1990s and is primarily used for voice calls and texts, will also be phased out, with a full switch-off expected by 2033. This move towards newer technologies will not only provide us with faster speeds and a more reliable connection but also contribute to a greener future, as 4G and 5G are significantly more energy-efficient.

When is it Happening? A Timeline for the UK

The 3G switch-off is already well underway, and some networks have already completed the process. Here’s a breakdown of the timelines for the major UK mobile providers:

  • Vodafone, EE, and Three: These providers have already completed their 3G switch-offs across the UK.
  • O2: O2 is in the process of switching off its 3G network across the UK, with the process expected to be completed by the end of 2025. For residents in Scotland, the switch-off is scheduled to begin on November 5, 2025.

All major UK networks are aiming to have their 3G networks fully phased out by the end of 2025.

Who is Affected by the Switch-Off?

If you’re using a 4G or 5G compatible device, you’re unlikely to be affected by the 3G switch-off. However, if you’re still using an older, 3G-only device, you will experience some significant changes.

Once the 3G network is switched off in your area, you will lose access to mobile data. This means you won’t be able to use apps like WhatsApp, Facebook, or email when you’re not connected to Wi-Fi. While you may still be able to make calls and send texts via the 2G network, you can expect a decrease in call quality and reliability.

It’s not just phones that are affected. Other devices that rely on 3G and 2G connectivity, such as some personal alarms, security systems, PDQ machines, and even in-car satellite navigation systems, may also be impacted.

What Do You Need to Do?

The good news is that preparing for the switch-off is straightforward. Here are the steps you should take:

  1. Check your device: The first step is to check if your phone is 4G or 5G compatible. You can usually find this information in your phone’s settings under “Mobile Networks” or “Mobile Data.” If you see an option for 4G or 5G, you’re all set.
  2. Enable 4G Calling (VoLTE): Even if you have a 4G device, you’ll need to make sure that 4G Calling (also known as VoLTE or Voice over LTE) is enabled. This feature allows you to make and receive calls over the 4G network, resulting in clearer call quality. You can usually find this option in your phone’s settings.
  3. Upgrade if necessary: If your device is not 4G or 5G compatible, you’ll need to upgrade to a new handset to stay connected. There are many affordable 4G and 5G smartphones available, so you don’t need to break the bank.
  4. Check your SIM card: In some rare cases, you may also need to upgrade your SIM card. If you’ve had the same SIM for a long time, it’s worth checking with your mobile provider to see if you need a replacement.

Frequently Asked Questions

Q: Will my phone stop working completely after the 3G switch-off?

A: If you have a 3G-only phone, you will no longer be able to connect to the internet via mobile data. You may still be able to make calls and send texts over the 2G network, but this will depend on your mobile provider. Three, for example, does not have a 2G network, so their customers with 3G-only devices will lose all connectivity.

Q: Will I still be able to make emergency calls?

A: Yes, your ability to make emergency calls should not be affected. All mobile phones, regardless of their network compatibility, are able to make emergency calls to 999 as long as there is a signal from any network available.

Q: What about my other devices, like my car’s satnav or my home security alarm?

A: It’s important to check with the manufacturer or service provider for any devices that rely on a mobile network connection. This includes personal alarms, security systems, and in-car systems. They will be able to advise you on whether your device is compatible with 4G or if it needs to be upgraded.

Q: Do I need to change my phone number when I upgrade my device?

A: No, you can keep your existing phone number when you upgrade your phone.

Future-Proofing Your Business

For businesses across the UK, the 3G and 2G switch-off presents an opportunity to future-proof your communications. If your business relies on older technology for its mobile fleet, payment terminals, or other connected devices, now is the time to upgrade.

At FCC, we’re helping businesses navigate this transition smoothly. From upgrading your mobile fleet to the latest 5G-ready devices to implementing modern, hosted telephony solutions, we can ensure your business stays connected and competitive.

Don’t wait until you’re left behind. If you’re unsure how the 3G and 2G switch-off will affect your business, get in touch with our team of experts today. We’ll provide you with a free consultation and help you create a seamless transition plan.