Area Code 618-765 located in BARTELSO, CLINTON, IL, more detail is as below. Place NPA (Numbering Plan Area) : 618 NXX (Local Number Prefix) : 765 City : BARTELSO County : CLINTON State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17027 LATA (Local Access Transport Area) : 520 Rate Center : BARTELSO ZIP Code Count : 415 ZIP Code Frequency : 98 ZIP Code : 62218 Other Information NPANXX : 618765 Switch CLLI (Common Language Location Identifier) : BTLSILXERS0 MSA CBSA (Core Based Statistical Area) : St. Louis, MO-IL MSA CBSA Code (Core Based Statistical Area) : 41180 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL OCN (Operating Company Number) : 1183 Coverage Area Name : BARTELSO Latitude : 38.5385 Longitude : -89.4693 ‹ previous : 618-764 next › : 618-767 Telephone Number List 618-765-0000 ~ 618-765-9999