Area Code 319-643 located in WEST BRANCH, CEDAR, IA, more detail is as below. Place NPA (Numbering Plan Area) : 319 NXX (Local Number Prefix) : 643 City : WEST BRANCH County : CEDAR State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 19031 LATA (Local Access Transport Area) : 635 Rate Center : WESTBRANCH ZIP Code Count : 1495 ZIP Code Frequency : 89 ZIP Code : 52358 Other Information NPANXX : 319643 County Population : 0 Switch CLLI (Common Language Location Identifier) : WBRNIAXODS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WEST LIBERTY TELEPHONE CO. OCN (Operating Company Number) : 1332 Coverage Area Name : WEST BRANCH Latitude : 41.6639 Longitude : -91.3397 ‹ previous : 319-643 next › : 319-644 Telephone Number List 319-643-0000 ~ 319-643-9999