Area Code 217-578 located in HAMMOND, PIATT, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 578 City : HAMMOND County : PIATT State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17147 LATA (Local Access Transport Area) : 976 Rate Center : ATWOOD ZIP Code Count : 34 ZIP Code Frequency : 4 ZIP Code : 61929 Other Information NPANXX : 217578 County Population : 0 Switch CLLI (Common Language Location Identifier) : ATWDILXCRS0 MSA CBSA (Core Based Statistical Area) : Champaign-Urbana, IL MSA CBSA Code (Core Based Statistical Area) : 16580 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : ILLINOIS CONSOLIDATED TELEPHONE CO. OCN (Operating Company Number) : 1037 Coverage Area Name : ATWOOD Latitude : 39.7982 Longitude : -88.4636 ‹ previous : 217-578 next › : 217-578 Telephone Number List 217-578-0000 ~ 217-578-9999