Area Code 641-358 located in THORNTON, CERRO GORDO, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 358 City : THORNTON County : CERRO GORDO State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19033 LATA (Local Access Transport Area) : 632 Rate Center : MESERVEY ZIP Code Count : 14 ZIP Code Frequency : 6 ZIP Code : 50479 Other Information NPANXX : 641358 Switch CLLI (Common Language Location Identifier) : MSRVIAXORS3 MSA CBSA (Core Based Statistical Area) : Mason City, IA MSA CBSA Code (Core Based Statistical Area) : 32380 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FRONTIER COMMUNICATIONS OF IOWA, INC. OCN (Operating Company Number) : 1127 Coverage Area Name : MESERVEY Latitude : 42.9096 Longitude : -93.4735 ‹ previous : 641-357 next › : 641-358 Telephone Number List 641-358-0000 ~ 641-358-9999