Area Code 209-258 located in PIONEER, AMADOR, CA, more detail is as below. Place NPA (Numbering Plan Area) : 209 NXX (Local Number Prefix) : 258 City : PIONEER County : AMADOR State : CA (California) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 06005 LATA (Local Access Transport Area) : 738 Rate Center : KIRKWD MDW ZIP Code Count : 51 ZIP Code Frequency : 12 ZIP Code : 95666 Other Information NPANXX : 209258 County Population : 0 Switch CLLI (Common Language Location Identifier) : KWDMCAXFRS0 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : VOLCANO TELEPHONE CO. OCN (Operating Company Number) : 2343 Coverage Area Name : TWIN BRIDGES Latitude : 38.7014 Longitude : -120.0759 ‹ previous : 209-257 next › : 209-258 Telephone Number List 209-258-0000 ~ 209-258-9999