phone number walmart.com
How can I buy a t-mobile sidekick prepaid? Please help me ASAP!?

Ok so I want a t-mobile sidekick 2008 but it has to be prepaid, I can buy the phone online without a contract at walmart.com, and I can get a sim card at t-moble.com but how will I know what my number is and could I keep my number? P.s I don’t want flexpay

You can buy a tmobile sidekick and use it with their prepaid service. If you wanted to put the device on att you need to unlock the device. Also when on att you will only be allowed basic calling and texting.