Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Got an iPhone 4s on Craigslist. The guy who sold it said he didn't need it anymore, so I try to connection it with my carrier and it looks like the phone is still attach to an sprint account. I call the guy to ask him to release it from sprint and his number is no longer good. Anyone nows how I can release the iPhone from.this number?? I tried reset but the old number still there..help!!

From the information you have given I can confidently say that the phone is most likely a stolen device.
 
I feel bad for the OP but you should of been at a Verizon or Sprint store. I have used CL several times and each time I would sell a phone I would always offer to meet them at a local Verizon store. I am curious on how much you paid for the 4s
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.