Area Code 319-275 located in FREDERICKSBURG, CHICKASAW, IA, more detail is as below. Place NPA (Numbering Plan Area) : 319 NXX (Local Number Prefix) : 275 City : FREDERICKSBURG County : CHICKASAW State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 19037 LATA (Local Access Transport Area) : 635 Rate Center : FREDERIKA ZIP Code Count : 23 ZIP Code Frequency : 9 ZIP Code : 50630 Other Information NPANXX : 319275 County Population : 0 Switch CLLI (Common Language Location Identifier) : FRDRIAXORS2 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : BUTLER - BREMER MUTUAL TELEPHONE CO. OCN (Operating Company Number) : 1115 Coverage Area Name : TRIPOLI Latitude : 42.8808 Longitude : -92.3089 ‹ previous : 319-275 next › : 319-275 Telephone Number List 319-275-0000 ~ 319-275-9999