Area Code 217-987 located in POTOMAC, VERMILION, IL, more detail is as below. Place NPA (Numbering Plan Area) : 217 NXX (Local Number Prefix) : 987 City : POTOMAC County : VERMILION State : IL (Illinois) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 17183 LATA (Local Access Transport Area) : 370 Rate Center : POTOMAC ZIP Code Count : 364 ZIP Code Frequency : 100 ZIP Code : 61865 Other Information NPANXX : 217987 County Population : 0 Switch CLLI (Common Language Location Identifier) : PTMCILXCRS0 MSA CBSA (Core Based Statistical Area) : Danville, IL MSA CBSA Code (Core Based Statistical Area) : 19180 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FRONTIER COMMUNICATIONS OF THE CAROLINAS, INC - IL OCN (Operating Company Number) : 1000 Coverage Area Name : POTOMAC Latitude : 40.3035 Longitude : -87.8030 ‹ previous : 217-985 next › : 217-989 Telephone Number List 217-987-0000 ~ 217-987-9999