Where can i buy a Iphone 4 that is already set up for Page Plus carrier?

I want to shop for a IPhone 4 that I will have NO Problems using with my Page Plus account! In other words, I want to buy an Iphone and then transfer my existing number to it! I just don't want to buy an IPhone that won't work with Page Plus! Any suggestions would be appreciated!

Bottom line, it will have to be 'unlocked' so it can work on another carrier. Odds are it will have to be a used Verizon Sprint 4 and not ATT 4. Why? Pageplus/Tracfone most likely uses CDMA signals like Big Red and Sprint. ATT uses GSM. The 4 doesn't have both bands built in, just one or the other so an ATT won't work. Also, double check with Pageplus that you can even bring a phone to them before you waste your time and coin. So unlocked from one of those two US carriers. Best luck.

Just make sure you get a CDMA phone. A GSM phone won't work. If you don't don't understand what I'm talking about, then you don't know enough about how to do what you're doing on the cheap.

Hugo_Draxx! Thank you! If you know a reliable website that I could shop at, that would be great!