About this number
(618) 286 is a landline based telephone number operated by Harrisonville Telephone Co. and is located in zip code 62239 in the city of Dupo, Illinois, which is in St Clair 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 286. It has an Operating Company Number (OCN) of 1026. A Common Language Location Identifier (CLLI) of DUPOILXERS0. As well as a Local access and transport area (LATA) of 520. Zip code 62239 has a population of 4,954 as of the 2010 census.