I am basically going to give up my unlimited plan since it's not cost effective to use the old plans. I want to switch to a 5GB mobile share plan, which I was told would cost me about $90/month + taxes for 2 lines. The only problem is I have 2 lines under contract. One ends 9/2016, and my unlimited plan ends sometime in 2017. These will cost me an extra $40 or so per month. I think I will have to wait until September, but is there a way I can get out of paying my device subsidy by cancelling my contract directly with AT&T, or would I have to switch to another carrier then come back and start fresh? Of course, I would like to keep my same phone number.