Area Code 641-345 located in CRESTON, UNION, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 345 City : CRESTON County : UNION State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19175 LATA (Local Access Transport Area) : 632 Rate Center : NEVINVILLE ZIP Code Count : 81 ZIP Code Frequency : 46 ZIP Code : 50801 Other Information NPANXX : 641345 Switch CLLI (Common Language Location Identifier) : NVVLIAXODS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : COON VALLEY COOPERATIVE TELEPHONE ASSN., INC. OCN (Operating Company Number) : 1137 Coverage Area Name : PRESCOTT Latitude : 41.1397 Longitude : -94.5049 ‹ previous : 641-345 next › : 641-346 Telephone Number List 641-345-0000 ~ 641-345-9999