My cousin bought used iphone he wants to know?

I too have iphone 5c, when i enter imei in www.iphoneox.com its show "out of contract" for mine
But when he entered it shown "under contract expiry date 14feb 2014" and sim shows unlocked, he wants to know what will happen after 14feb, 2014?

Contract is with service provider… Tmobile/AT&T etc.

Hi contact apple themselves I've had to do it before and they walk you step by step on what to do. They are friendly and glad to help should take maybe 10 mins. 1-800-my-apple.