Can a sprint iphone 4s be unlocked to boost mobile?

I have a sprint iphone 4s but I want to use it with Boost mobile. Can it be unlocked to use with Boost Mobile? Is that at all possible?

Yes you can check the trusted cheap factory unlock service for iphone 4s:
http://www.monitoring-softwares.com/how-to-unlock-iphone.html

Yes it is possible to unlock your iPhone 4S by using remote unlocking service from http://www.unlock-zone.com/apple-iphone-4s/rs5wp9/ and unlock it from sprint. Once it is unlocked you can use it with Boost Mobile.

Can I use I phone 5 from sprint to boost mobile