Using LG Rumor in the Dominican Republic

I have a Sprint LG Rumor and was wondering if anyone knew if it could be activated for use in the DR. Sorry for my ignorance, I tried to read the forum to get the answer but all the info makes my head spin and I'm more confused than b4. I'm hoping I could just bring it to a cell phone provider there and they would handle the unlocking/flashing, or whatever needs to be done to the phone and give a new local number. I know this can be done with verizon phones and at&t phones, but sprint? Anyone have any experience or advise?
thanks