International roaming needs to be activated on your account to allow your Optus service to work while overseas.

You can check if international roaming is active on your account in:

• My Optus app
• My Account

Note: You may need to connect to WiFi to access My Optus app or My Account if your roaming is not working.

If you'd need to call us instead, you can contact our technical support team on +61280825678 (calls from a roaming Optus mobile phone to this number are free).

Need help activating roaming? Click here for steps to activate roaming. If you're a Prepaid customer click here for steps to activate roaming.

Your phone's settings may be the reason you can't connect to your Optus service while roaming. You'll need to check following:

1. Try turning your phone off/on
2. Do you have aeroplane or flight mode on? If so, turn it off to allow your phone to reconnect to an available network.
3. Unable to use data? Confirm data roaming is active to connect to the Internet

If you need specific steps to your mobile phone, check out our devices guides for help.

You'll need to connect to an overseas network while roaming to allow your service to work. If your service isn't working do the following:

1. Confirm you're connected to a network
2. If connected but not working, try manually selecting a different mobile network

If you need specific steps to your mobile phone, check out our devices guides for help.