I recently bought an iphone 4s and is from verizon?

If I unlock it could I have on another carrier other then Verizon? And if so which carrier would be good and affordable.

Apple is harder to unlock. Just enjoy using the interface as is.

Just remember you would have Early Termination Fee to leave. For an iphone, that's $350.

I bought the phone of ebay so is not like I'm under and plan.

That is not good