How are people selling their iPhones?

A lot of people were selling their iPhone 5 on Craigslist. Some were from Sprint and Verizon and were also selling for more than $600. How are they doing that if phones from Sprint or Verizon aren't being sold unlocked by the carriers? Also, is it that easy to cancel an account just to sell the iPhone?

Because they are a big company

Well, first off the iPhone 5 sucks in my opinion. And if you just cancel your account you have to pay a termination fee which costs like $300 (Actually just depending on the carrier) If you don't pay the fee then you'll have a bad ESN and bad credit. Its VERY hard to sell a phone with a bad ESN.

Anybody that stupid to buy an IPhone from anybody off Craigslist are very stupid…

1.To Pay That Price When You Can Buy a Brand New One For The Same Price In Store.
2. The Chance Of Those Being Stolen Are 9/10 Times. (Don't Every Buy a IPhone From Someone's On Craigslist)

If They are selling IPhone 4 & IPhon4s it's probably because they' are moving onto the IPhone5's

Yes it's very simple to turn off one phone and another… All you have to do is activate a new phone and then the previous phone turns off… Simple as that…

But if someone is really going to spend $600 on a phone from a complete stranger they might as well just go into the story and buy a brand new phone for that price…

Verizon iPhone 5 are available unlocked. NO need to cancel the account to sell iPhone.