Can I use a SIM plan on any mobile device?
We're switching off our 3G network from September 2024, which means 3G services will no longer be available on the Optus network. Regardless of the SIM plan you have purchased, if your device relies on 3G for voice or data use, your service will be impacted from this date. This includes the inability to:
- Make calls
- Send or receive messages
- Make emergency calls to Triple Zero (000)
- Use data or connect to the internet
If your device is impacted you will need to get a new device that's compatible with the Optus 4G/5G networks to stay connected and continue to use your SIM. The easiest way to check if your device is 4G/5G compatible is by having a look at your device specifications in the user manual, or refer to the manufacturer’s website.
Here’s what you need to check to confirm if your device is compatible:
- If your device is compatible with the 4G Network 700 MHz (LTE Band 28 or also known as B28 spectrum)
- If your device supports 4G VoLTE (which enables voice calls to be made over a 4G network) - including VoLTE emergency calling
If your device does not support one or more of the above, it will no longer work or will have significantly reduced coverage once the 3G network is switched off.
Important - In addition to 3G devices, some recent 4G devices may also be impacted including models that may have been purchased overseas or imported which aren’t configured for Australian networks or do not support 4G VoLTE.
Click here to see some of the devices impacted by this change. Please note this is not a complete list of impacted devices as there are thousands of different devices, models and variants (including devices not sold by Optus).
If you are concerned your device is impacted you can find additional information on our 3G Changes Help & Support Page.