Can you unlock an iphone 4s on ios 7?

I bought an Iphone 4s that is on ios 7 that is locked to sprint. Is it possible for me to unlock this phone to use on any carrier?

You should be able to Jailbreak the phone to unlock it for use on any carrier and internationally. Try searching You Tube under "jailbreak iPhone 4S".

Should be. Check http://chronicunlocks.com