I purchased a JA cell phone at Digicel 6 years ago. Ever since purchase, I've topped it off every few months to keep my number active and use every time when in JA. I loaned my phone to a friend and now my phone is completely damaged and not usable (glade plug in leaked all over it). My friend purchased an unlocked cell off of Ebay and my SIM card from my now damaged phone fits in the new unlocked phone.

Will the replacement phone work -- will all my credit and stored phone numbers automatically move to that phone? Will the new phone now have my old cell phone number? I am really trying to avoid a trip to Digicel so I hope my questions can be answered here.