Will my iPhone 4 work in 2015?

My cousin told me my carrier will no longer carry iPhone 4 in 2015. Is this true? I've looked it up and I can't seem to find anything about it

Nobody sells the 4 anymore. It came out in 2010 and when goodbye in 2013. You mean nobody will provide cell service for it? Not true. 4 is a 3g device and so is 4s. There are still about 15 million 4s's running in America right now and about 6 million 4's still left. People even use the 3gs still. It will be years from now before 3g service is shut off. Too many phones in America still run on it. Best luck.

Yes my dad had a old Sprint flip top and it could make phone calls but now he has iPhone 6+

This is a very silly question of course it will still work and yes carriers will still support it