Originally Posted by drbond
If you have had service with Cingular for more than three years and have been under your contract for more than 90 days on your most recently purchased phone or are out of contract with the phone completely. Have not had any service cancellation or suspension issues and are in tier 1 or 2 on Cingular credit, they will unlock your phone for you.
If you do a google search for unlocking mobile phones, you'll find many vendors that will do it for between $25-40 dollars...