Area Code 217-999 located in WALSHVILLE, MONTGOMERY, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 999 City : WALSHVILLE County : MONTGOMERY State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17135 LATA (Local Access Transport Area) : 976 Rate Center : MOUNTOLIVE ZIP Code Count : 67 ZIP Code Frequency : 5 ZIP Code : 62091 Other Information NPANXX : 217999 County Population : 0 Switch CLLI (Common Language Location Identifier) : MTOLILXCDS0 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 : MOUNT OLIVE Latitude : 39.0738 Longitude : -89.7255 ‹ previous : 217-997 next › : 217-999 Telephone Number List 217-999-0000 ~ 217-999-9999