Area code and exchange code is assigned to every constituent of city in the United States. The area and exchange codes of the telephone can be used to find information about a region. Area code 876 and exchange code 573 is assigned to Kingston. The latitude and longitude corresponding to 19.30611 and -81.36759 can be used to find an area on the map. Digicel Cayman Limitedoperates most of the land lines in United States.