Area Code 641-857 located in ACKLEY, HARDIN, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 857 City : ACKLEY County : HARDIN State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19083 LATA (Local Access Transport Area) : 632 Rate Center : DUMONT ZIP Code Count : 67 ZIP Code Frequency : 13 ZIP Code : 50601 Other Information NPANXX : 641857 Switch CLLI (Common Language Location Identifier) : DUMTIAXODS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : DUMONT TELEPHONE CO. OCN (Operating Company Number) : 1152 Coverage Area Name : DUMONT Latitude : 42.7501 Longitude : -92.9696 ‹ previous : 641-856 next › : 641-857 Telephone Number List 641-857-0000 ~ 641-857-9999