How to Unlock TracFone Phones

1. Write down your phone's IMEI (international mobile device identification) number. Find it by typing '*#06#' into your phone and hitting 'Send.' It might also be on a label under the battery.
2. Get your unlock code one of two ways. First, call TracFone. Give the rep your IMEI number, and you will be told whether an unlock code can be provided. If you're not eligible, navigate to one of several online unlocking services. Enter your phone's model and hit 'Unlock My Phone' or some such equivalent. The site will ask you to identify your current service provider. This will typically indicate how much unlocking a TracFone will cost. This number can vary from $9.99 to $39.99 as of 2010, depending on the type and age of the phone, as well as the network you're leaving.
3. Remove your TracFone SIM card. Put the battery back in and turn on the phone. Enter the unlock code when prompted. A message will appear to tell you if the code was accepted.
4. Remove the battery and insert your new carrier's SIM card. Reboot the phone to officially leave TracFone for a new carrier.