Area Code 641-743 located in GREENFIELD, ADAIR, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 743 City : GREENFIELD County : ADAIR State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19001 LATA (Local Access Transport Area) : 632 Rate Center : GREENFIELD ZIP Code Count : 1030 ZIP Code Frequency : 87 ZIP Code : 50849 Other Information NPANXX : 641743 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS OCN (Operating Company Number) : 1170 Coverage Area Name : GREENFIELD Latitude : 41.3030 Longitude : -94.4638 ‹ previous : 641-743 next › : 641-744 Telephone Number List 641-743-0000 ~ 641-743-9999