Area Code 641-693 located in LIBERTYVILLE, JEFFERSON, IA, more detail is as below. Place NPA (Numbering Plan Area) : 641 NXX (Local Number Prefix) : 693 City : LIBERTYVILLE County : JEFFERSON State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 2000-08-20 FIPS (Federal Information Processing Standards) : 19101 LATA (Local Access Transport Area) : 632 Rate Center : LIBERTYVL ZIP Code Count : 236 ZIP Code Frequency : 67 ZIP Code : 52567 Other Information NPANXX : 641693 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : WINDSTREAM IOWA COMMUNICATIONS, INC. OCN (Operating Company Number) : 1178 Coverage Area Name : LIBERTYVILLE Latitude : 40.9574 Longitude : -92.0530 ‹ previous : 641-693 next › : 641-696 Telephone Number List 641-693-0000 ~ 641-693-9999