Area Code 712-636 located in EARLY, SAC, IA, more detail is as below. Place NPA (Numbering Plan Area) : 712 NXX (Local Number Prefix) : 636 City : EARLY County : SAC State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 19161 LATA (Local Access Transport Area) : 644 Rate Center : NEMAHA ZIP Code Count : 2 ZIP Code Frequency : 2 ZIP Code : 50535 Other Information NPANXX : 712636 Switch CLLI (Common Language Location Identifier) : NEMHIAXORS6 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 : NEMAHA Latitude : 42.5178 Longitude : -95.0815 ‹ previous : 712-636 next › : 712-636 Telephone Number List 712-636-0000 ~ 712-636-9999