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 763 and exchange code 314 is assigned to Monticello. The latitude and longitude corresponding to 45.29917 and -93.78946 can be used to find an area on the map. Fibernet Monticellooperates most of the land lines in United States.