Area Code 319-679 located in HILLS, JOHNSON, IA, more detail is as below. Place NPA (Numbering Plan Area) : 319 NXX (Local Number Prefix) : 679 City : HILLS County : JOHNSON State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 19103 LATA (Local Access Transport Area) : 635 Rate Center : HILLS ZIP Code Count : 316 ZIP Code Frequency : 58 ZIP Code : 52235 Other Information NPANXX : 319679 County Population : 0 Switch CLLI (Common Language Location Identifier) : HILSIAXODS0 MSA CBSA (Core Based Statistical Area) : Iowa City, IA MSA CBSA Code (Core Based Statistical Area) : 26980 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : SHARON TELEPHONE CO. OCN (Operating Company Number) : 1293 Coverage Area Name : LONE TREE Latitude : 41.5475 Longitude : -91.5299 ‹ previous : 319-679 next › : 319-682 Telephone Number List 319-679-0000 ~ 319-679-9999