Activate or Replace a SIM Card: Prepaid

If your Optus Prepaid number is active and you need the SIM replaced, or you’d like to activate a new SIM, all the information you need is here.

First, back up your old SIM card. You can get help here. Then follow the prompts to:

While you wait for your new SIM to be activated:

  • Insert your new SIM card into your device
  • Change your new SIM card PIN from the default (0000)
  • Periodically turn your device off and on until your replacement SIM has activated
  • You will see Optus next to the coverage bars once the SIM is active
  • To manage your account for mobile devices including tablets, download the My Optus app
  • If you have a USB modem, connect it to your computer and install the connection software. For device help, Click here

If you’re experiencing SIM card, or activation issues, click here for help.