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 609 and exchange code 232 is assigned to Burlington. The latitude and longitude corresponding to 40.07 and -74.85 can be used to find an area on the map. Pac-West Telecomm, Inc. - Njoperates most of the land lines in United States.