About this number
(618) 735 is a landline based telephone number operated by Citizens Telecom Co Illinois-F and is located in zip code 62864 in the city of Mount Vernon, Illinois, which is in Jefferson County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 618 and Network Numbering Exchange (NXX - also known as a prefix) of 735. It has an Operating Company Number (OCN) of 1183. A Common Language Location Identifier (CLLI) of WDLWILXEDS0. As well as a Local access and transport area (LATA) of 520. Zip code 62864 has a population of 24,108 as of the 2010 census.