Area Code 217-736 located in CLINTON, DEWITT, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 736 City : CLINTON County : DEWITT State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17039 LATA (Local Access Transport Area) : 366 Rate Center : WELDON ZIP Code Count : 13 ZIP Code Frequency : 5 ZIP Code : 61727 Other Information NPANXX : 217736 County Population : 0 Switch CLLI (Common Language Location Identifier) : WLDNILXCRS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FRONTIER NORTH, INC. - IL OCN (Operating Company Number) : 1015 Coverage Area Name : WELDON Latitude : 40.1271 Longitude : -88.7541 ‹ previous : 217-735 next › : 217-736 Telephone Number List 217-736-0000 ~ 217-736-9999