Area Code 217-203 located in BUFFALO, SANGAMON, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 203 City : BUFFALO County : SANGAMON State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 12/6/2010 FIPS (Federal Information Processing Standards) : 17167 LATA (Local Access Transport Area) : 374 Rate Center : BUFFALO ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 62515 Other Information NPANXX : 217203 County Population : 0 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 : SBC INTERNET SERVICES, INC. OCN (Operating Company Number) : 516C Coverage Area Name : BUFFALO Latitude : 39.8498 Longitude : -89.4080 ‹ previous : 217-202 next › : 217-204 Telephone Number List 217-203-0000 ~ 217-203-9999