Yes. There's no reason you can't as long as it's yours and you have the 3 digit code, 16 digit number, and there are funds on it. You may need to add the card before using it, but it should work fine.  I have used different prepaid cards over the course of my time with tmo.

Actually the answer is NO.

I've tried to use my visa gift cards online and at the store. Neither way works. 

Online, I get an error. 

In the store, it goes through but is then rejected. 

No one can tell me why.