Can you use a Sprint Iphone 5 on Verizon's network?

I live in sacramento and have limited connection with my iphone 5 only getting 3G on sprint. I want to know if its possible to use Verizon's network on my iphone. If not can I end my contract because I only get 3G half the time in sacramento.

Your Sprint phone will only work on the Sprint network. This is true for Verizon, AT&T, T-Mobile, and all other carriers.

Though it may cost more, I've found excellent service throughout CA with Verizon service.