Prepaid sim card with any t mobile?

Question

can i get the prepaid sim card from t mobile and use it with any t mobile phone. can i use it with the sidekick?

Answer 1

Your simcard should work on any T-Mobile phone.  However, you cannot take your sim card and put it into an AT&T phone's slot.  Without the proper programming code, you can't unlock AT&T phones.  So for instance, you can't take it out of your pay as you go, and slip it into a Sync, or an iPhone.

Answer 2

You can use your SIM card with any T-Mobile phone.  Sim cards are exclusive to T-Mobile and the network only cares about the account that is set up with your sim card and not the phone itself.