Area Code 217-536 located in WATSON, EFFINGHAM, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 536 City : WATSON County : EFFINGHAM State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17049 LATA (Local Access Transport Area) : 976 Rate Center : WATSON ZIP Code Count : 444 ZIP Code Frequency : 32 ZIP Code : 62473 Other Information NPANXX : 217536 County Population : 0 Switch CLLI (Common Language Location Identifier) : WTSNILXCDS0 MSA CBSA (Core Based Statistical Area) : Effingham, IL MSA CBSA Code (Core Based Statistical Area) : 20820 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL OCN (Operating Company Number) : 1183 Coverage Area Name : WATSON Latitude : 39.0227 Longitude : -88.5752 ‹ previous : 217-535 next › : 217-536 Telephone Number List 217-536-0000 ~ 217-536-9999