Area Code 217-731 located in CLINTON, DEWITT, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 731 City : CLINTON County : DEWITT State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 2002-10-25 FIPS (Federal Information Processing Standards) : 17039 LATA (Local Access Transport Area) : 366 Rate Center : CLINTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 61727 Other Information NPANXX : 217731 County Population : 0 Switch CLLI (Common Language Location Identifier) : BLTNILATPMD Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : LEVEL 3 COMMUNICATIONS, LLC - IL OCN (Operating Company Number) : 6115 Coverage Area Name : CLINTON Latitude : 40.1596 Longitude : -88.9551 ‹ previous : 217-730 next › : 217-732 Telephone Number List 217-731-0000 ~ 217-731-9999