Area Code 641-344 located in OSCEOLA, CLARKE, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 344 City : OSCEOLA County : CLARKE State : IA (Iowa) NXX Use Type : Wireless NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19039 LATA (Local Access Transport Area) : 632 Rate Center : CRESTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 50213 Other Information NPANXX : 641344 Switch CLLI (Common Language Location Identifier) : DESMIATHCM1 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : UNITED STATES CELLULAR CORP. - IOWA OCN (Operating Company Number) : 6266 Coverage Area Name : OSCEOLA Latitude : 41.0346 Longitude : -93.7663 ‹ previous : 641-343 next › : 641-345 Telephone Number List 641-344-0000 ~ 641-344-9999