Can I reactivate an iPhone so I can regain the ability to track it?

My phone got stolen at school last week, and the insurance deductible is too high (200$) , so is there any way that I can call my Sprint store and have them reactivate the phone so I can try to track it and possibly get it back? It's an iPhone 4s if that matters.

If the sim card has already been changed it's impossible.

Call sprint about it, if the phone is restored then it can't be tracked.