Yes, foreign cell phones work on Nevis, but you must set them up for international roaming in your home country with your company (Cingular, Verizon, etc.) before traveling. Make sure you check the rates when you are arranging for service. If you travel to Nevis often, it may be cheaper to purchase a cell phone here at either Cable and Wireless or Digicel and then purchase pre-paid phone cards. These can be used for overseas calls.