3G switch-off - Does your phone support 4G Calling?
Due to government legislation, our 3G network will be switched off in 2025 to make way for faster and more reliable 4G and 5G services. You may need to take action to stay connected after the switch-off. Find out more
Check if you have a compatible 4G or 5G phone
Select your phone's make and model below to check if it supports 4G Calling (also known as VoLTE).
Don't know your phone's make and model? Use our IMEI checker
Finding your phone with IMEI number
How to find your IMEI...
Your IMEI is a 15 digit number unique to your device.
You can find this either by dialling *#06# on your phone in the same way you would dial a phone number or under the battery.
If your device doesn’t have a removable battery you will find it at the bottom of the device or on the SIM tray.
Alternatively, on most iPhones the IMEI can be found on the back of the device.