Area Code 217-457 located in ARENZVILLE, CASS, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 457 City : ARENZVILLE County : CASS State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17017 LATA (Local Access Transport Area) : 376 Rate Center : CONCORD ZIP Code Count : 23 ZIP Code Frequency : 12 ZIP Code : 62611 Other Information NPANXX : 217457 County Population : 0 Switch CLLI (Common Language Location Identifier) : CNCRILXCRS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FRONTIER COMMUNICATIONS OF MIDLAND, INC. OCN (Operating Company Number) : 1055 Coverage Area Name : CONCORD Latitude : 39.8150 Longitude : -90.3763 ‹ previous : 217-456 next › : 217-457 Telephone Number List 217-457-0000 ~ 217-457-9999