Area Code 641-338 located in MURRAY, CLARKE, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 338 City : MURRAY County : CLARKE State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19039 LATA (Local Access Transport Area) : 632 Rate Center : THAYER ZIP Code Count : 15 ZIP Code Frequency : 15 ZIP Code : 50174 Other Information NPANXX : 641338 Switch CLLI (Common Language Location Identifier) : THYRIAXORS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : GRAND RIVER MUTUAL TELEPHONE CO. OCN (Operating Company Number) : 1888 Coverage Area Name : THAYER Latitude : 41.0293 Longitude : -94.0506 ‹ previous : 641-337 next › : 641-338 Telephone Number List 641-338-0000 ~ 641-338-9999