What you’ll need
Note: Before you change your SIM card, make sure to save your contacts on your phone, since you won’t be able to access them from your old SIM card once you switch to the new card. Check your phone’s user guide (found on the manufacturer’s website) for information on how to transfer the contents of your current SIM card to your phone.
How to update your SIM card
How can I find my SIM card number?
There are two ways:
Note: Some older or newer Androids may not follow these steps. If you run into issues, look up how to find the ICCID for your particular model of phone on your phone manufacturer’s website.