Area Code 319-256 located in MOUNT PLEASANT, HENRY, IA, more detail is as below. Place NPA (Numbering Plan Area) : 319 NXX (Local Number Prefix) : 256 City : MOUNT PLEASANT County : HENRY State : IA (Iowa) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 19087 LATA (Local Access Transport Area) : 634 Rate Center : WAYLAND ZIP Code Count : 53 ZIP Code Frequency : 7 ZIP Code : 52641 Other Information NPANXX : 319256 County Population : 0 Switch CLLI (Common Language Location Identifier) : WYLDIAXODS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : FARMERS & MERCHANTS MUTUAL TELEPHONE CO. OCN (Operating Company Number) : 1166 Coverage Area Name : WAYLAND Latitude : 41.1382 Longitude : -91.6590 ‹ previous : 319-255 next › : 319-256 Telephone Number List 319-256-0000 ~ 319-256-9999