Area Code 217-667 located in MOUNT STERLING, BROWN, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 667 City : MOUNT STERLING County : BROWN State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17009 LATA (Local Access Transport Area) : 376 Rate Center : MINDALE ZIP Code Count : 5 ZIP Code Frequency : 9 ZIP Code : 62353 Other Information NPANXX : 217667 County Population : 0 Switch CLLI (Common Language Location Identifier) : MINSILXCRS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : ADAMS TELEPHONE COOPERATIVE OCN (Operating Company Number) : 0976 Coverage Area Name : HUNTSVILLE Latitude : 40.1400 Longitude : -90.8418 ‹ previous : 217-667 next › : 217-667 Telephone Number List 217-667-0000 ~ 217-667-9999