The 3G farewell is coming.
As the 4G and 5G rollout across Aotearoa increases momentum, it’s now time to look ahead and prepare to farewell the 3G network. By the end of March 2025, when you'll be able to access 4G everywhere you currently have 3G (or 5G, where available), we will switch off the 3G network.
Everything you do now on 3G will be significantly better on 4G - and even more so on 5G!
There's still plenty of time to make the move, though, and we'll be with you every step of the way.
What happens now?
If you're already using 4G/5G mobile data and voice calling (sometimes named "VoLTE calling" in your network settings), then you're good to go - there's nothing to do except enjoy the best possible connection in your area.
If you’re not using 4G/5G mobile data and voice calling, you’ll need to check your phone’s compatibility first, which will guide what action you need to take. You can check what model your current phone is in your phone’s settings. Then, check your phone's 4G compatibility here, or visit your nearest One NZ store and speak to one of our team.
- If you’re using a 5G phone, 4G Calling should already be enabled, unless the call settings have been manually changed to 3G only.
- If you’re using a 4G phone, you will still need to check if it is capable with 4G/VoLTE calling. If it is capable, ensure you have the latest software updates, then set up 4G Calling following these instructions and you’re sorted. If it is not capable, you’ll need to upgrade by 31 March 2025 to continue making voice calls.
- If you’re using a 3G phone, you’ll need to upgrade it by 31 March 2025 to stay connected.
Options for upgrading:
- If you have a One NZ Pay Monthly mobile plan, consider buying a new phone interest-free. Check out your options here.
- If you have a One NZ Prepay plan, check out the range of capable devices to find one that's right for you here.
Are you a Business customer? Find out how switching off 3G will affect you.
Frequently asked questions
Network and coverage
Why are you switching off the 3G network?
When will the 3G network be switched off?
What happens if I don't upgrade my mobile before March 2025?
What services will be affected when 3G switches off?
What should I do if I can't connect to the 4G network in my area?
What if my area only offers 3G right now?
Will my phone work for the upcoming Starlink Satellite to Mobile service?
Mobiles and devices
Will my phone still work?
How do I check if my device is 4G or 5G VoLTE capable?
If you’re unsure what model your device is, you’ll find this information in your phone’s settings.
Will I need a new SIM card?
My phone isn’t connecting to 4G. What should I do?
- Check if your phone is 4G-capable. A list of 4G and 5G-capable devices is available here.
- Ensure your phone’s software is up to date and the VoLTE service has been enabled in your device settings. If needed, you can access instructions for enabling VoLTE here.
- Update your device settings to connect to 4G using these user guides.
- Check you're in an area with 4G coverage using our network coverage map.
Having issues connecting to 4G?
Contact us
I need to upgrade my mobile phone but don’t want an expensive device. What can I do?
What is VoLTE?
Roaming