Area Code 217-999 located in MOUNT OLIVE, MACOUPIN, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 999 City : MOUNT OLIVE County : MACOUPIN State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17117 LATA (Local Access Transport Area) : 976 Rate Center : MOUNTOLIVE ZIP Code Count : 1186 ZIP Code Frequency : 91 ZIP Code : 62069 Other Information NPANXX : 217999 County Population : 0 Switch CLLI (Common Language Location Identifier) : MTOLILXCDS0 MSA CBSA (Core Based Statistical Area) : St. Louis, MO-IL MSA CBSA Code (Core Based Statistical Area) : 41180 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 : 217-999 next › : 218-200 Telephone Number List 217-999-0000 ~ 217-999-9999