About this number
(618) 566-0011 is a landline based telephone number operated by Charter Fiberlink - Illinois, and is located in zip code 62258 in the city of Mascoutah, 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, a Network Numbering Exchange (NXX - also known as a prefix) of 566 and a subscriber number of 0011. It has an Operating Company Number (OCN) of 462C. A Common Language Location Identifier (CLLI) of NOCLLIKNOWN. As well as a Local access and transport area (LATA) of 520. It was first assigned for usage on 08/29/2005. Zip code 62258 has a population of 9,199 as of the 2010 census.