Area Code 217-237 located in SPRINGFIELD, SANGAMON, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 237 City : SPRINGFIELD County : SANGAMON State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17167 LATA (Local Access Transport Area) : 976 Rate Center : KINCAID ZIP Code Count : 23 ZIP Code Frequency : 3 ZIP Code : 62704 Other Information NPANXX : 217237 County Population : 0 Switch CLLI (Common Language Location Identifier) : KNCDILXCRS0 MSA CBSA (Core Based Statistical Area) : Springfield, IL MSA CBSA Code (Core Based Statistical Area) : 44100 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : ILLINOIS CONSOLIDATED TELEPHONE CO. OCN (Operating Company Number) : 1037 Coverage Area Name : BULPITT Latitude : 39.5895 Longitude : -89.4180 ‹ previous : 217-237 next › : 217-237 Telephone Number List 217-237-0000 ~ 217-237-9999