3G network is being phased out
Act now to stay connected
Sunrise is phasing out its outdated 3G mobile technology to make way for faster, more efficient 4G and 5G networks.
This change is essential to free up capacity and improve energy efficiency, ensuring yallo customers benefit from a faster and more reliable mobile experience starting from 10th June.
Action is required from you.
What do you need to do?
To continue enjoying uninterrupted mobile services, you must upgrade to a 4G or 5G compatible device as soon as possible.
Most modern devices already support 4G, 5G, and VoLTE, so upgrading is simple and ensures you stay connected without any hassle.
If your device already supports 4G and VoLTE, you’re all set! You won’t be affected by the shutdown and will automatically benefit from an even faster and more reliable network.
Who will be affected?
If you are using a device that only supports 3G technology, you will no longer be able to make calls, send texts, or use mobile data after 10th June. The 3G network will be switched off step by step. From 10 June onwards, 3G services will no longer be available everywhere in Switzerland.
This includes:
Customers with older mobile phones that do not support 4G or 5G.
Customers using 3G-only SIM cards or devices.
Customers whose devices do not support VoLTE (Voice over LTE), which is required for making voice calls on 4G and 5G networks.
If you’re unsure whether your device is affected, visit a yallo or Sunrise shop. Our experts will check your device and guide you through the upgrade process.
Sunrise network coverage
Sunrise covers over 99.9% of the Swiss population with its 4G network and over 99.5% with its 5G network. This means that 4G and 5G network coverage is significantly higher than it was with the previous 3G network.
Check your area’s coverage using our interactive map showing the current coverage.
We’re here to support you
We understand that change can be daunting, but we’re committed to making this transition as smooth as possible for you and look forward to providing you with an even better mobile experience.
As a valued yallo customer, your satisfaction is our priority. For any 3G questions, call our free dedicated numbers: 0800 733 744 (available from 09:30 to 19:30). Our team is ready to assist you in selecting the right device and preparing for the future.
Thank you for being a loyal yallo member.
FAQ
- Voice calls and emergency calls via 3G (will continue via 4G VoLTE).
- Data transmission via 3G (will continue via 4G/5G).
- SMS via 3G (will continue via 4G; VoLTE is required except for data-only devices).
- Circuit-switched data (CSD) will no longer be available.
Why is the 3G network being switched off from June 10th?
The 3G network is outdated and inefficient compared to modern 4G and 5G technologies. Switching it off allows us to free up resources, improve energy efficiency, and provide faster, more reliable mobile services.
Is Sunrise the only carrier switching off 3G?
No, all Swiss operators have indicated that they plan to shut down the 3G network in the future. Even if one provider wants to continue operating the 3G network for now, it seems clear that 3G will eventually be completely shut down in Switzerland.
Which devices/phones are affected?
Devices that only support 3G
devices that support 4G but not VoLTE (Voice over LTE) for voice calls
Does my device support VoLTE?
Most devices made in 2018 or later support VoLTE. To check, look for the 4G/5G icon during a call. If it disappears, your device may not support VoLTE. For assistance, visit our VoLTE support page
Which services will be shut down?
Will 3G still work in some areas from June 10th?
The 3G network will be switched off step by step. From 10 June onwards, 3G services will no longer be available everywhere in Switzerland.
Can I keep my phone number and prepaid credit?
When changing your device, we recommend upgrading to a new subscription or a prepaid tariff with unlimited data to avoid unwanted costs.
Which technology should I switch to?
We recommend upgrading to 4G or 5G to ensure you’re prepared for the future and enjoy faster, more reliable services.
Do I need to change my SIM card?
Some older SIM cards may not support 4G/5G. If you’re affected, we’ll notify you directly.