Can a Tmobile Prepaid Sim Card Work in an Unlocked iPhone?

i bought a att&t phone with the sim card and come to find out the sim card is sim locked to the specific phone i bought.

i have a iphone that is jailbroken and unlocked.

so i was wondering if i buy a tmobile sim card PREPAID will it work with the iphone


Thanks in advance.

Also-- does tmobile offer unlimited texting and calling for prepaid as well?

If the iPhone is unlocked through a proper source it will work with other GSM networks.I had a locked one,and after unlocking it through the permanent remote unlock service from Theunlockspot.com I was able to swap networks in my iPhone.You can contact the customer service to know more about the plans that they offer.