Area Code 417-787 located in ALTON, OREGON, MO, more detail is as below. Place NPA (Numbering Plan Area) : 417 NXX (Local Number Prefix) : 787 City : ALTON County : OREGON State : MO (Missouri) NXX Use Type : Landline NXX Intro Version : 2004-08-17 FIPS (Federal Information Processing Standards) : 29149 Rate Center : ALTON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 65606 Other Information NPANXX : 417787 County Population : 0 Switch CLLI (Common Language Location Identifier) : BASNMOCUDS0 Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 417-785 next › : 417-788 Telephone Number List 417-787-0000 ~ 417-787-9999