Area Code 641-201 located in MASON CITY, CERRO GORDO, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 201 City : MASON CITY County : CERRO GORDO State : IA (Iowa) NXX Use Type : Wireless NXX Intro Version : 2001-06-30 FIPS (Federal Information Processing Standards) : 19033 LATA (Local Access Transport Area) : 632 Rate Center : MASON CITY ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 50401 Other Information NPANXX : 641201 Switch CLLI (Common Language Location Identifier) : MSCYIA755MD 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 : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : MASON CITY Latitude : 43.1491 Longitude : -93.2037 ‹ previous : 636-998 next › : 641-202 Telephone Number List 641-201-0000 ~ 641-201-9999